35s, 37s, 38s or 40s? The Truth About Tire Sizes and Picking What's Right For You

[@CJCOffRoad]

Wheel and Tire Fitment Guides: 2014+ Ram: kzbin.info/www/bejne/f4q2gnaqmalgb68 2017+ Ford: kzbin.info/www/bejne/nZrXZGh8pahga9E 2003-13 Ram: kzbin.info/www/bejne/qJzPm4yBqayoe6Msi=nmGM9UYAeNA-MGzn

[@brokenwrench404]

What about tire width. I’ve seen you installing 12.50’s and 13.50’s. How much more trimming is involved for the wider tires and what if someone wants a narrower tire with little to no tire sticking out? Thanks

[@bret9741]

You'll provide absolutely great information. I'm 58. In the 1980’s I was in high school and people were really getting into lifted trucks in my home town. I started designing and making lift kits in the 3-6” category for Fords, Chevys and Toyotas. As you know… lifting trucks can be a lot like any passion… addictive and if one isn't careful, its possible to lift too much or go to the extreme. I ended up with 18” of lift set up For 44” monster mudders. Whats amazing is how little HP and Torque the 1/2 ton pickups and Toyotas had back in the 80’s and 90’s. We had install 4:56 or lower gears and truth be told, we still lacked sufficient power or at least relative to today's pickups. I love this nation, how small businesses and people with a passion to modify and make things “all their own” is a common daily event. I have to say…. I struggle with anything much larger than a 3” lift and 37’s on an F-250/350. When I was young.… it wasn't a big deal but now, loading up a truck with 6” of lift and 40” tires is a pain. That being said… to each their own. All I ask is that people do it right and then really learn how the modifications have changed the stopping and emergency maneuvering of the truck. We all owe it to one another to always think of safety and the consequences of our actions. Thanks for another great informative video.

[@nathanmcdonald610]

That's why everyone wanted a big block in their lifted trucks back then. Even back then those old 460 Fords and 454 Chevy's made just over 400ftlbs of torque, usually a relatively low RPM and they could handle spinning larger heavier tires better, small blocks and V6's that we're lucky to make 300ftlbs of torque and usually under 200hp in those days struggled a lot more as you said.

[@markcole6475]

I grew up in that same era. I remember people my age (and much older) installing some pretty shady lifts and stupid big tires the driveline could barely handle…..I had a couple cool trucks and the biggest tire I had was a 35”…..that was considered big back then…now people are trying to run 40s on the streets. 34”-35” is pretty common now days and tire technology has come a long way for ride and stability…..I’ve been a Ford tech for 16 years and have seen some pretty horrific issues from even good suspension lifts…they can really change the geometry if someone isn’t careful…..I can’t count all the times someone would bring a vehicle in under warrantee complaining of a driveline vibration after a lift was installed…😅

[@PULSEXBillionzz]

yup and replacing ujoints every weekend... lol

[@bret9741]

@@markcole6475sadly I’ve seen a lot of Fords with no modifications having horrific problems lol… Was looking at a stack of 4-wheel off-road and 4x4 magazines from the 80’s. Every magazine had trucks feature with 44” tires especially in California, Arizona and southern states. The FlyingHi bumper sticker was everywhere.

[@markcole6475]

@@bret9741 once in awhile they all have horrific problems …as a norm , modifying suspensions always changes ride quality and characteristics of a vehicle….cant count the time people would put lifts on trucks and then try to bring it in for warranty repairs concerning vibrations, squeaks ,rattle etc.

[@rojer9542]

Went with the 35's simply because I wanted a matching spare that would fit in the stock location. Compared to the stock tires I'm quite pleased.

[@truckstreestoys]

And more room for the tampon dispenser. Awesome choice my brother!

[@kurtmcmichael2045]

Of course there’s a hitch change out that allows a 37” spare

[@rbljackson]

This is very relevant and I agree with you. I've wondered whether a Ram on 37's could have a full sized spare if it was deflated and stored. Anybody know if that works? I think it should have been mentioned in the video, but was a point that was overlooked.

[@truckstreestoys]

@@rbljackson you don't need a full size spare. If you do because you're overlanding, throw it in the bed. If it doesn't fit in the bed with your gear, don't buy a baby truck with a 6.5ft bed.

[@CJCOffRoad]

@@rbljackson Sadly there's no room on the 2500 platform due to the rear track bar. It's very cramped in there at full suspension compression!

[@jdirt1982]

Back in the 80s I used to race dirt bikes watch porno and drink whiskey, now I watch truck videos and drink lemonade .......

[@austinrau6051]

🤣🤣🤣🤣

[@johnm.515]

VHS porn was the best.

[@hemitears2105]

💯 facts

[@BlueSta1n]

And beat it off all the same 😂😂😅

[@steveyork8069]

Back in the 80’s I had f250 6” inch lift with 35’s was my favorite look.

[@cigarsgunsanddiesel8032]

My brother had a 88? F150 reg cab with a 6" lift & 35's... even had the 300 I6 and 4sp granny tranny!

[@be-lake6610]

Ram 2500 cummins regear to 4:10’s your trans will thank you very much. 3500 guys don’t have to worry about this as much. With a voided warranty randys transmission baby maker kit without tuning also very good option running 37’s and up 👍🏼

[@stevetipper7385]

Nitro 430 gears with the weaker ram 2500 trans.

[@brycecampbell4845]

I run 42 x 15.5 tires on 24x14 rims on my Jeep Gladiator with an Eco-Diesel engine. I've only tuned it and cold air inductioned it. And it gets between 13 and 17mpg and I drive fast. Highway it was cruise at 85mph-100mph all day long. I increased brake size of course but it corners well. I tow 16ft enclosed trailer (4,000 to 5,000 lbs total with it from 1,000ft above sea level to 550 miles away at over 10,000 feet above sea level. Only slight trouble I've had is overheating engine on hot days pushing 75mph + speeds. I think I can help that with remove D€F system and maybe meth injection. Intercooler would help as well and new exhaust. Anyway, I'm having fun on a Jeep Gladiator. Surely you guys can get those full size trucks with much larger diesels to operate well on 40's and 42's in my opinion. Maybe even 44's although I haven't seen any that big

[@DortonFarb]

I just use the stock 53" Michelin ZXL double-beadlocked tubeless runflat tires on my 2007 ex-USMC MARSOC Raiders AMK23 MTVR armored 6x6 gun truck. With 1,550 foot-pounds of torque from it's 12-liter (732 cubic inch) CAT intercooled turbodiesel, it does okay...

[@ulisesperez4510]

I did this on a miata

[@downbytheriver501]

@@ulisesperez4510pfffhhh. I did this on my Isetta.

[@TheRoamingWookie]

When i get the money i am definitely going to CJC, so i can say i got my truck lifted by Ralphie from A Christmas Story 🙌

[@CJCOffRoad]

This actually made us all laugh out loud hahaha

[@aarongonzales5106]

Every video I can picture him rubbing a lamp made out of a shock. 😏

[@TheRoamingWookie]

@@aarongonzales5106 HAHAHAHA That was good

[@TheKidAubrey]

I’ve got 35s on my 97 7.3 I was going to go 37s but these old dinosaurs don’t need em. Getting a lastest gen super duty and I think I’m going 38s based on your video. Great video, thanks!

[@Nine6teen]

I tow with 37’s and I like the differential clearance of 37’s

[@MTBryanH]

When I bought my 2020 Power Wagon I immediately jumped from 33's to 35's. Just a slight handling difference. I had E rated Duratracs in 35. I recently went from those 35's to Toyo 37's with Method wheels, HD704 from CJC Off road. I feel the Toyo sidewalls are a little stiffer so they honestly don't handle much different than the 35's. Just a little trimming. Very pleased!

[@di3seldrifter191]

I daily a 2nd gen on 40s with a 6" lift and have zero problems

[@MarAgt]

I have a 2015 AEV Ram 2500 w/37’s that I bought new w/the AEV pkg. I like them, but for two reasons. 1. 37’s are a constant battle w/death wobble. 2. 37’s make it hard to fit in a lot of garages and drive throughs. If I were doing it again, I would stick w/35’s & a leveling kit rather than 37’s & a lift.

[@chris2884]

Would really like your input on tire size for the Godzilla and performance with tire sizes.

[@JOHNNYGIX]

I have an ‘04 Ram3500 manual with 456 gears and want to go to 40’s. I’ve been running 37’s since new (with 6” suspension lift) and now that I no longer tow a big fifth wheel with it, I think 40’s will pull a gear better. Truck has been a garage queen for most of its life, only drive it on nice days now

[@kennyb1451]

I've got a 12 2500 with a Carli 6" lift. On this lift I run a Toyo RTs in a 37x12.50r20, got 53k miles in these tires and still have good tread left. It's all about tire pressure and alignment

[@jovanemontes80]

What tire pressure you usually run on your tires?

[@kennyb1451]

@@jovanemontes80 I run 50 front and 45 in the rear

[@CJCOffRoad]

@@jovanemontes80 If you need help on tire pressure, give this video a watch: kzbin.info/www/bejne/rpDEmqGOoLt-qKM

[@dougcjohn]

‘23-24 F450, stock 19.5 wheels 225R70-10.5 16 ply @ 32”. Moved to 22.5 wheels 255R70-22.5 16 ply @ 37". Retained same sidewall height on larger wheels. Have a 2.5" Coil Ft & 2" rear ready to go on, but surprisingly the larger tire seems to fit, probably due to commercial tires not being extremely wide… tire change added only 3/4" width. Taller wheel & tire feels to have improved ride for 16 ply.

[@reinc83]

Since Ford reconfigured the front end to fit 37 X 12.50s, are they going to offer a 37 package on the 2025s? 🤔

[@ditryn]

Tires are like TV's these days, you buy a 42", then you want a 55", then you want a 65", wow that 75" looks good - but the 80" is out. Bottom line never satisfied.

[@bquade70]

Excellent run down, thank you! 35's on 17's. '18 RAM 1500. Eibach / Bilstein 3/1 level. Better on and off Rd than stock. Love this combo. Thx for the advice a few yrs back. Lake Havasu 🌞 Az

[@cmz85]

Im running 37” Hankook on my ram 1500. Ive done over 100 mph on these tires without any problems. However, im averaging about 11 mpg 😮 Btw, it’s a lifted 6 inches 2017 stock Hemi.

[@redbeastadventures]

Got my suspension components and Method 704HD 17x9 +18mm wheels and other stuff from CJC. Great folks to work with. 😀 Ended up with Toyo RT Trails 37x12.5x17 tires and they work great on the 2024 Ram Power Wagon (aka Red Beast Wagon). Lots of videos on my YT channel on the build and a few offroad trips if interested. At any rate, I think 38s would well on this truck as well as it still has plenty of power with the 4.10 axles and the 8 speed transmission. After I wear these tires out in the rocks, I may go to the 38s (will have to do a little more work on the inner fender pinch weld, etc). The Falken Wildpeak RT 38x13.5x17 looks like an awesome tire to go with for me next time. Who knows what else might be available in the next year or two…. Again thanks to CJC Off Road for providing great advise and equipment.

[@mcmehlen]

For my Silverado 1500 33s with a 3in lift is perfect. Still tows fine and didn’t completely kill mpg (avg 16-18)

[@markymark959]

Micro tires…perfect for city folk…

[@mcmehlen]

@@markymark959 feeling insecure today?

[@leo-ub6nb]

That’s a good OEM+ look. Did you get aftermarket wheels or did you stay with stock wheels?

[@mcmehlen]

@@leo-ub6nb I kept oem wheels

[@kevinray5636]

I run 35 KO2 on my super duty. Great wearing tire that looks good on.

[@ppdavidson1]

I would have mentioned gearing, that makes a huge difference in performance.

[@CJCOffRoad]

We touched on it briefly in the video!

[@CompoundKodiak4x4]

Ive got a 06 c4500. If your looking for a 40 with load capacity. Goodyear MSA in 335/80/20 is f load range at 6345 per tire andcare speed rated to 81mph. I run the 365/80/20s on my truck. Continental has tires in these sizes also but are only speed rated to 68mph.

[@jasonperkins8716]

That did answer some of my questions. I have f350 1 ton. I put 37s on it and that’s just not enough for a truck that big it has a 6 inch lift. I had to modify the fenders openings make Sheet Metal wheel houses because the old fender liner wouldn’t fit after modified everything. It looks OEM. As I was a autobody technician. So I did a good job. My next step is going to be 40 inches. The truck is a weekend warrior. I don’t drive it much at all. Sometimes it sits four months. But my next thing is, I’m doing the Hydro assist and putting 40s on it. Then I’m gonna get some gearing done. It’s a lot of truck that’s why I want a lot of Tire. It is 08 but there’s only 140,000 miles on it. So mechanically, I think I’m OK with doing that to a weekend warrior. Although everybody knows those six point fours can be problematic. as last year, I had to change the turbo,EGR coolers, sensors, water pump thermostats clutch fan. Stupid DPF. Otherwise, I’ve had that truck through Ford ice in California and all kinds of other trails I probably should’ve not have been on. Thanks for the Tire info. 😊

[@cobeytriche4808]

Putting bigger tires changes the gear ratio. Everyone lifts these trucks and put bigger tires and don't change gears.

[@ikemort6427]

Haha. You can go do that but anyone who knows anything about these knows that is not necessary.

[@johnm.515]

Bro science

[@Sickoloko24]

That f250 have 1200 pound feet of torque lol 😂 it can pull 25k it doesn’t need a regear newbie it’s a was of money if it was a jeep wrengler with 215 pound feet of torque I would understand why it needs a regear but not this stop speaking out your ass hole.

[@jwright1776]

‘22 tremor with a fully optioned Carli leveling kit (including trophy hitch) with 37x13.5r18 e rated tires is what I call ideal

[@ted4719]

Definitely felt the difference going from a cheap light 35" tire to a heavy ridge grapplers. Big difference in stop and go.

[@dougzzzie738]

I have an 05 Ram 2500 with a leveling kit running 35x12.5r17 tires. I still have the slightest rubbing on the driver's side when parking, but besides that, truck's got a stellar ride, and doesn't lose its ass when trying to merge onto the highway (I'm not running a tune)

[@PRV392]

38” WildPeak ftw! So far on 2500/3500’s these have been the best handling and comfortable for towing.

[@derekheuring2984]

I recently bought a low mile (16K) 2022 Power Wagon which came with 37" X 12.5" X 18" Nitto Trail Grapplers already on it. Here are my observations: The stance and look of the truck is amazing and I get lots of compliments on it. The tires rub a little when turning if I hit a bump which is no big deal as the rub is barely noticeable. They also tend to follow ruts and imperfections in the road when driving on asphalt which again, is no big deal if you pay attention when you're driving. The tires have a max pressure of 65 psi and the previous owner kept the tires at 60 psi (cold) so I'm sure when I'm running down the road in the Texas heat the tires could be hitting max pressure. I lowered the psi to 57(cold) but I'd like to know what you recommend for a psi when the truck's unloaded and psi when the truck is loaded to near max GVW. I sub'd to your channel and look forward to lots more good information from you.

[@CJCOffRoad]

We'd recommend doing a slight trim of the fender liner to stop the rubbing, upgrading the steering stabilizer to reduce feedback, and dropping tire pressure to maybe 38 front and 28 rear range unloaded depending on what results you see from the chalk line test shown in this video: kzbin.info/www/bejne/rpDEmqGOoLt-qKM

[@charleskeene715]

I have maxis razor mts 40 x 1350 on 20 inch wheels and they are great all around. 2018 f350 dually

[@jasonpitts8395]

I like my 37s but the spare has to go in the bed and it isn't light weight. With the Carli suspension + 37s on 18-inch wheels, my RAM 2500 rides like a Cadillac. On long trips, I lost about 2 MPG with the larger tires.

[@viciouswolf85]

factory gears? 3.42 or 3.73?

[@hill160881]

I run g rated 365/80r20. 44” on my f450. Daily driver. Towing a 28 footer atm. 4.5” commuter lift

[@realistic.optimist]

I knew when I ordered my truck I was going to go with 37's or 38's so I ordered it with 3.55:1 gears to compensate.

[@michealcavanah8659]

2007 gmc with a 4.8 sitting on 17s and 40s with 456 front and rear gears

[@dereksampson4715]

These changes aren’t really noticed on these newer 10 speeds transmissions though, 38s on up (towing) on a pre 2020 with a 6 speed is completely different, now your getting into re-gearing

[@dereksampson4715]

Although 38x13.50x18 look really nice

[@Somewhere_in_the_Woods]

I’ve always wondered what Toby from The Office did after the show

[@bobvedder2451]

Irun 35s on my gladiator. Its big enough for me to get more ground c!earance. I didn't want to regear my difs. With the MOPAR 2 inch it works well in Alaskan winters.

[@cksmith007]

You guys have so many helpful videos. I'm shopping for a new Ram 3500 or possibly a 2500 right now. I'm definitely planning to consult you guys for lift, tires and wheels once I pull the trigger.

[@CJCOffRoad]

Always happy to help when you're ready!

[@ourfunctionalfarmhouse]

Excellent video, and I was one who emailed one of these questions as well. 2022 Ram 2500, Carli 3.25 with 37x13.50s. Perfect fit and look, I am thankful for the recommendation to go with the 13.5 over 12.5. Stock gears on my rig are 3.73s, and I was a little nervous on the towing front. There was an initial feeling of light sluggishness from a stop, very minimal braking. In my gear ratio case, highway towing improved significantly. Combined fuel economy is down 2mpg, a price worth paying for the improved performance. Time will tell if a gear ratio change would be worth it.

[@richiet6381]

Your videos have been very informative to not only myself, but I’m sure a ton of people out there either in the workforce or just enthusiast. Thank you very much. Also a quick note anybody to even utter anything regarding fuel mileage are out of their mind ha ha you step into this game that goes out the window… Get a cyber truck ha ha ha ha thank you sir.

[@CJCOffRoad]

We appreciate the support!

[@Veterans-e2c]

I run 35s open country AT 3 with 17x9 0 offset method 315 machined on 2024 gmc sierra 1500 Denali duramax I put 1 2” level I have the adaptive suspension and don’t wanna lose towing performance with this setup the ride is butter 🧈

[@CaptainAries98]

since i have my 1st "working truck" i plan on doin 33s and a lvl kit with aftermarket shocks, struts and springs since i hate the air ride cuz it feels very bouncy and me personally i prefer a stiff ride for added comfort. eventually i might go with 35s but for now my plan is to have 33s and a lvl kit with a mean exhaust setup

[@hunterlogan2913]

good "subjective" info... How much you drive street to off-road very important the more aggressive u get with tire size

[@stevetipper7385]

I had you guys swap my 35s to 37s after a week on my ram. Also had your recommended gear guy do the 430s on my ram. 👌

[@DevotedDiesel]

Maybe a video on the different load ratings of tires and what to look for when shopping for larger tires on these trucks

[@CJCOffRoad]

Sounds like a solid idea! If you want the spark notes version, ignore the letter rating completely and look just at the max load in pounds per tire. As long as that meets your needs, you're good to go. Keep in mind too that, for example, a 3,500 pound rating per tire means 7,000 pounds per axle.

[@rascal0175]

I’m an old (77) guy new to this. I have a stock ‘05 Dodge 3500 4WD Cummins I want to put 35X11.50R17s on. A little internet research tells me this will work, the local tire shop says it can’t be done and that the tires will rub. I’m not doing anything special with the truck. It does not have a lift kit. I just want a safe install with tires I already own. You seem really on top of this. What do you guys think? Thank you.

[@davidhurley5123]

I have a 07 dually 3500 ram 4wd Cummins I have 35/12.50/17s on mine I did have to do a 2” spacer between the rear but the front doesn’t rub at all if you don’t want to do spacers in the rear between the duals about the largest you can do is a 10.50 wide I had 265/70/17 on it those are 10.70 wide and I had maybe 1/2 inch between the rears hope this helps if you have any other questions just let me know

[@rascal0175]

@ Thank you. Mine is a single rear wheel with E rated tires. Not looking to go 4 wheeling, just making use of a set of tires I came into. Not really concerned about appearance. I do have a 16 foot dump trailer I occasionally tow. And being a pickup truck the bed does get loaded from time to time. I don’t know if my tire shop was on the level or just didn’t want the work on a Friday afternoon. They assured me the 35X11.5/17Rs will rub with my stock wheels. It seems to me the wheel wells are ample but I can’t see beyond that without getting it up in the air. Of course it has to work under foreseeable conditions. Not just standing still. I know zero about this stuff. Big wheels and monster trucks were never an interest. Thanks for your input. I’ll add it to the mix.

[@vincefairleigh6899]

I’d like to trade in my 1500 and get a one ton diesel truck with 37” tires but no more than a 2” lift, possibly even have to do some trimming and gears… I might go with a 4” lift only because it’s so long and the bark over angle is bad..

[@Sdukes001]

37x13.50R17 for the win 45-40 tire pressure front rear unless towing. Carli for the win 🇺🇸🇺🇸🇺🇸

[@fergotti]

Yup I run 40 psi front 35 rear

[@Sdukes001]

@@fergotti I’ve been debating dropping another 5 psi going to try it out

[@fergotti]

@Sdukes001 if you go to carli website I'm pretty sure it recommends 37s on 17s or 18s on toyo mts at 40psi and 35 rear. I've had several people mention how smooth my truck rides. I only have commuter setup leveled

[@CJCOffRoad]

We have a whole video on tire pressure here: kzbin.info/www/bejne/rpDEmqGOoLt-qKM

[@Sdukes001]

It’s crazy how much of a difference it makes trying to the chalk test I ran mine down to 40-35 front rear with that test obviously that is empty once you’re going to tow that will change.

[@tylerk2327]

Always really informative videos. Great work

[@chris2884]

You make a comment about how 37’s are at home with modern day diesel trucks. What about the Godzilla?

[@downbytheriver501]

Better stay with 31s for the gasser 😆

[@rockie307]

7.3 is fine with 37s. It obviously won't handle them as well as the super powerful modern diesels but you can get by just fine. The modern diesel trucks really need the 37s or larger so when there being pulled up on the tow truck no damage occurs to the def reservoirs.

[@downbytheriver501]

@@rockie307 *as long as the 7.3 gasser has 5.33s or better 😜

[@downbytheriver501]

@@rockie307 also: they’re. Not hard unless you skipped 5th grade grammar.

[@rockie307]

​@downbytheriver501 Yea dat tru. Thesee day you needs atleast 1200 ft lbs of torques to hauls a gallon of milks.

[@markymark959]

I’ve always liked 37s on big trucks….usually requires a slight lift so they don’t rub

[@philisledbetter4412]

What would you put on a 2024 Power Wagon, GAS not diesel, on 17” stock wheels and no additional lift. I pull a 25 foot RV. I just want the best look, still keep a good ride comfort, but have a better profile. I went with a bed cover, wheel well covers, power step sides, Back Rack, of course other stuff, but I just would like a bigger tire. I actually like my wheels that came from the factory.

[@andyxxgerico]

For my first set of tires where 35s and my second 37s, for my third set they will be 38s

[@CJCOffRoad]

Sounds like the standard progression! haha

[@archstanton3636]

Why does my truck hate speed bumps and potholes, hits so hard. 35's on Carli 2.5 performance

[@CJCOffRoad]

What's your tire pressure and wheel/tire size?

[@DortonFarb]

I pre-ran the pro course of the SCORE Baja 1000, the toughest off-road race course in the world, using 285/70R17 (33") tires on a two wheel drive pickup with no lift. I have to laugh at what some pickup drivers think is "necessary" for the solo slabbing and mall crawling that 99% of them do.

[@chris1293]

I noticed a slight lost of acceleration going to 35’s on my 22’ Ram PW. So a little concerned about going to 37 or 38’s tire. Are there regear options for my truck?

[@leo-ub6nb]

There definitely are! If you want an easier and cheaper alternative, at least for the time being, I’d recommend a tune. I went with 5StarTuning but there are plenty of e-tune suppliers. It was like $500 for the tuner and I was able to load up 5 tunes on it (2 come for free, $10 for each additional tune). For whichever e-tune shop you choose, they’ll ask for specifics about your truck, like gear ratio, wheel and tire size, and any other performance mods you’ve done. A few days later, they’ll email you or send it to your tuner directly via internet connection. It depends if the tuner you purchased has WiFi or not. At first, my truck (on 35s) felt sluggish and the engine felt like it was being overworked. I got an e-tune and it was a day and night difference! It felt much better, even from stock. Definitely got more pep and the engine feels like it’s just running good overall. In the end, I still want to regear, but for a 4X4, it’s almost double the price (twice the parts). The only thing is, your truck will have to relearn its shifting behavior (it’s based on your driving habits), so the first few hundred miles, you might notice some harsh shifts. It’s not anything overly harsh or anything that will damage your vehicle. Even when you first got the truck it more than likely went through that calibration without you even noticing. For my truck, it takes 400 miles before it fully learns the shifting points based on the driver’s driving habits, and calibrates itself accordingly. Even if I got a regear done, I still would e gotten a tune afterwards. But the e-tune is much cheaper, versatile and customizable due to you being able to pick multiple tunes and load them up to the truck for whichever you feel like using. They’re not “on the fly” tunes, as you can only load 1 tune at a time to the vehicle, but they’ll all be stored on your tuner. And when you load one up to the truck, it can take anywhere between 5-20 mins. The first time is usually the longest. I know my post is long, but just trying to give you as much info and what to expect, if you do go that route.

[@DoctorPrepperMD]

37" definitely affects the power and stopping of my F-250. I have a 2020 F-250 with 35" and normal output 6.7 diesel and I have a 2023 with HIGH output and 37" tires. The 2020 with normal output is more responsive and faster than my 2023 HIGH output 6.7 and I assume that is the 37". They both have the same axle ratios.

[@JonathanAshworth50]

What axle ratio?

[@killersodas7695]

Should I go bigger? I have a 2010 Raptor 👉👈 its my daily im worried it will make the gas alot worse i havent run into any issues off road with stock height and wildpeak at3ws

[@killersodas7695]

i really like the look of 40s 🤤

[@timshapleyadventures]

I have a 2022 F450 dually, 19.5 inch wheels. Can anyone comment from experience with going to a 37" in this set up? I'm running about 34" right now. I love the way the truck drives with Continentals and towing but it is squishy with All Season Toyo's. Wondering if a lift kit would be required for a bigger tire? I'm not interested in increasing suspension height right now. Thanks.

[@qazqaz-kp1xj]

I follow your beautiful channel and I owned a 2022 Raptor with a 35 package and it was sold and I used it for two years. I now want to buy a Ford F-150. There is a 3.5 V6 turbo engine in Saudi Arabia and a 5.0 V8 engine. Which one do you advise to buy or recommend buying a 2024 Raptor with a 37 package?

[@jd14985]

I have a 23 Ram 2500! It’s my everything truck…. Work, play, business meeting, etc! I was thinking of going with the Carli Leveling kit that you have, with Nitto Ridge Grapplers 37” x 13.5” & 22” x 10” Fuel Strike rims! What do you think?

[@CJCOffRoad]

That sounds like a perfect plan to us, minus the wheel specs. You'll have a tough time fitting 37s on a 10" wide negative offset wheel! To fit 37s on a Ram truck we recommend a +12 to +27 offset wheel that is no wider than 9.5”

[@gabrielzazueta2218]

I have a 2006 ram 3500 that I lightly tow with. It’s on 6 inch lift on 37’s. I want a suspension that smooths out all the road pot holes, speed bumps, rough roads. What kind of system should I go with without breaking the bank?? I’m actually really looking for a shop to help me out and it that dodge going through the desert looks awesome

[@robertgoodrich8953]

Ship your truck to CJC. They sold me the best wheels possible for my 22 Ram Power Wagon. Great price, helpful info, excellent service, quick shipping.

[@qazqaz-kp1xj]

I want to buy a new car. Do you recommend buying a Ford F-150 V8 5.0 or a Ram Dodge? I would like to know which is better in the long run, has fewer problems, and has less fue

[@MarkyMark2003]

I have a 2015 Chevy Silverado 2500hd with the gas 6.0L. Would I have to rear gear my front and rear dif if I went from the 35s that I am at now to 37s??

[@CJCOffRoad]

That honestly all depends on your driving style and usage! If you're hot shotting with the truck probably, but if it's just a daily driver and off road rig, most likely no.

[@MarkyMark2003]

Ok, I also plan to put a 2.3l whipple supercharger too at some point

[@corporateair4853]

Hello, Question which is the best high speed tire, I find my self running 80 to 100 for hours on end lately on toll roads and It makes me nervous with tread separation which I have already encountered 2 times which destroyed the wheelwells but still drove home on the bare carcass of the core. I run 35s 80 90 mph daily some days all day long ..

[@qiqi7226]

im wondering if there is a lowering kit or spring set would work on 2500 AEV xl, but with maybe 20inch rims and 38 tires?

[@KAP32DW]

I run 33 Falken’s on a 2500 diesel Ram…perfect tire. The truck is smooth, mpg is great and offroad capability is excellent. The max I would go is 35’s. Everyone has an agenda for me it’s overall performance towing, mpg and usability. The 37 trucks is an easy pass.

[@rayprado3656]

You run those on the factory wheels?

[@KAP32DW]

@@rayprado3656 yes I have the factory alloy wheels with a Carli 2.0 lift and shocks.

[@bradleygoodrich5569]

Personally see no need to go bigger than 37s. The options for tires get lower when you go to 37s and larger. The price of tires only gets worse. Theyre usually loud. They dont wear that great on the highway because theyre a softer compound tire. They are really heavy. My tires are a metric size but come out to 36x13 in. And they are 80 lbs a piece. Theres not really much need to go bigger than 37s. With 38’s… whats half an inch really getting you..

[@rogerbrandt6678]

Agree 100%

[@Kovemaster_69]

I'll second this . I'll even say 35s are more then adequate. But we all know 37s look way better. I'm on 35s right now but I want a little more tire since I want a smoother ride and I'm on 22's

[@JimPfannenstiel]

What about balancing the larger tire/wheel combos. Weights or balancing beads? I hear different things from different shops and I'm curious where you come down on the subject. Discuss please.

[@CJCOffRoad]

We always like to use traditional stick on weights. If that doesn't do the trick, then we use the Centramatic or Balance Master balancers we sell on our website in addition to stick on weights.

[@stuartwacker2013]

What color is the Ford SuperDuty @ the :28 second mark in the video ?

[@korn111685]

Personally I think 35s are 👌

[@ACamaroGuy]

If you placed a 4" taller tire wouldn't you want to add 4" on the rim? On a truck, can you run lighter metals for the rim to help reduce weight?

[@CJCOffRoad]

No, since half of that tire height is above the center line of the wheel. On these trucks the small weight savings of a forged wheel etc doesn't really make an impact. It's maybe a pound or two at most.

[@DM-tf6mk]

Another great video! I have a 22 Ram 2500 6.4 hemi with 3.73's. Currently on 35's. Would I be unhappy if I jumped up to the 37's since it doesn't habe the 4.10's, regarding acceleration? I know my mpg will be affected. Thanks

[@CJCOffRoad]

Not really and we say that having gotten custom gears made for our Power Wagon when we moved to 37s just to test things out. If we could do it again, we'd just stay with stock gears and keep it simple since it's got an 8 speed transmission that does just fine keeping the engine in the right RPM band.

[@DM-tf6mk]

@@CJCOffRoad Thanks so much for the reply and information! Appreciate it.

[@giovannireynolds6780]

I have a 6.4 crew cab Laramie Carli pintop with 37x12.50x17 nitto ATs i went from 3.73 to 4.44 because there definitely was a difference. A lot of gear hunting and sluggish from stock. At 4.10s you might notice a slight difference but not huge. Re gearing ain’t cheap either.

[@DM-tf6mk]

@giovannireynolds6780 Thanks for reply!

[@BoZoneFreeriders]

I wish there were more 38 13.50 load range E tires for 17s. Majorly lacking combo there

[@CJCOffRoad]

38s in general are super limited in terms of sizing! Hopefully that changes soon.

[@BoZoneFreeriders]

@@CJCOffRoad I hope this changes soon!

[@PRV392]

It’s not possible. They’re already capped at a 128 load index for D/8 Ply. There is no reason to over index at that point with such a large amount of weight rating.

[@BoZoneFreeriders]

@PRV392 I see what your saying, but I can't imagine with the large truck market as big as it is, them not figuring it out. Getting a large, capable tire on these big trucks that support their weight rating would be attractive to a lot of people.

[@PRV392]

@@BoZoneFreeriders As they stated in the video once the sidewall starts getting large enough where 17’s on 38’s & 40’s start with a lot of squirm and lack of steering input it is hard to cater for HD pickups. 3/4 - 1 ton’s do not need 10 and 12 ply when the factor is only overall load rating (3195-4680 etc). They don’t need 80 psi to allows achieve.

[@johnwayne5976]

Wow awesome video, thank you. I learned a lot.

[@vincefairleigh6899]

I’d stick with a maximum of a 17” rim too

[@tyler87kelley]

I really wish with the ram trucks with the air suspension that if you offer a 2 inch lift for the front I want 2 inches of lift for the back. If I want the truck to ride level I will hit the alternate trailer height button on the dash.

[@CJCOffRoad]

We offer air specific systems with 2.5" front and 1" rear lift or 3.25" front and 2" rear lift. Both result in a level truck!

[@tvk3645]

What about the automatic transmission shifting based on factory settings fir a 34” tire when you put on a 37”?

[@CJCOffRoad]

The answer to that all depends on the truck, driving style, factory gear ratio, and TCM. For example, 14-18 68RFE Ram trucks with a 3.42 gears typically need gearing when you majorly step up tire size. Newer 2023+ Fords have a smart enough TCM to figure out shift points with the new tires and adjust accordingly, especially if they have a lower factory diff gearing.

[@CW4PWR]

The clinical name for this issue is called "Tire Envy."

[@CJCOffRoad]

It's a real and serious condition.

[@BigBear11141]

What is the effect on your Speedometer? Do you have to do something to make it accurate?

[@CJCOffRoad]

Larger tires will reduce the speed shown, but there's lots of options to correct it depending on your year truck. Hypertech modules or Forscan will work!

[@BigBear11141]

@@CJCOffRoad Thank you! I've watched many Custom Car Builds on TV... And no one talks about that... Gotta get people a LOT of Tickets!

[@SandyRavaged]

Why never a discussion of regearing? Is that a diesel vs gasser thing? I know in the gas it makes a difference in mpg and lower end torque if you surpass the range of ratio.

[@CJCOffRoad]

On these new 8 and 10 speed trucks, there's really no reason to re-gear. It used to matter a lot more with the old 4 speed third gen Rams and trucks of that era.

[@SandyRavaged]

@@CJCOffRoad do you guys offer regearing if requested?

[@CJCOffRoad]

@@SandyRavaged Absolutely! Not in house, but we work with a great local gear and axle shop that specializes in just that if any trucks need gear work.

[@SalvadorAviles408]

Waiting for July 4 hopefully some discounts on Mickey Thompson Baja boss at 37/12.5-17

[@RXR91]

Can you go 37s on an 18" wheel on a 2024 F350 SRW without any cutting?

[@Thatdudemario]

What rim and tire size is on the black f250

[@texaslso]

What 37's do you recommend on a 6.7L 2023 King Ranch with 20" factory rims? I like the color match factory wheels and don't want to stick out much because my place is three miles down a gravel road and don't want to throw rocks on the side of my truck. Thanks for the great content!

[@CJCOffRoad]

You'll want to use a narrow all terrain like a Toyo AT3 or Falken AT

[@newmexicodreams5633]

Best video on the subject. Thanks

[@CJCOffRoad]

Glad it was helpful!

[@RevMacGuillicutty3735]

I have a 97 suburban with a 4" lift. 17"rim. currently have 35s. would 33s work or should i stick with 35s?

[@dusty7264]

I have 38s on my 69 Ford F-250 4x4 it doesn’t even have a lift kit on it I think try are just harder on the brakes.

[@allanjones6807]

I have a 2017 F-350 straight wheel with factory sized tires and a 2-1/2 leveling block on the front. - what would be the best size all-terrain tire w/o a lift kit Thanks

[@CJCOffRoad]

If you have factory wheels, you'll want to run a 33" all terrain like a Toyo AT3 or Nitto Recon Grappler.

[@allanjones6807]

@@CJCOffRoad thanks… there are sooo many options I wasn’t sure what to get

[@Monkey_Snot]

Do you gays as a company recalibrate the speedometers after installing tires that are several inches bigger in diameter from factory sizes? Do you notify customers that their speeds are different from what they see to what they are actually driving at? Because it does effect the speedo vs actual road speed.

[@CJCOffRoad]

Correct, customers are aware of the change and it's not really a big deal. Recalibration methods all depend on the vehicle platform, but if possible it's done.

[@Monkey_Snot]

@@CJCOffRoad oh good, just a concern. We have a couple of shops around here (Canada) that do not recalibrate, nor make the customer aware, they are shady af and I warn my customers about them.

[@germannevarez928]

What about the stress on the transmission on the rams do you regear or upgrade the transmission

[@CJCOffRoad]

That all comes down to the exact truck and usage. For example, 2023+ Fords do just fine, but older Rams tend to handle 37s better with a re-gear if you're towing and hauling heavy. If you're mostly empty, there's not really a need.

[@watchervideo1]

Help… I have 23’ F150 V8 with 3.31 gear ratio. does Falken AT4w 285/70/18 tires 34s effect my driving ? Does is to heavy for 3.31 ratio? Thank you 🙏

[@Turfgreenpro]

I have a ford 2021 6.7 diesel what tires do you guys recommend ? No lift only 2” leveling kit in front

[@dave4347]

I'm pretty set on the 2.5 inch leveling kit with 35s for my Ram. If I were to step up to 37s, would you recommend the 3.25 lift kit over the 2.5?

[@CJCOffRoad]

Both actually offer the same clearance for tires, so it's all about what you prefer. 3.25" will ride significantly better as you replace the rear coils. To fit 37s on a Ram truck we recommend a +12 to +27 offset wheel that is no wider than 9.5.” A +12 wheel will yield a slight poke from the fender, while a +27 wheel is just about flush with the side of the truck.

[@johnbehneman1546]

THANK YOU SO MUCH. I L;EARNED A LOT!!!