How to Fit 37s on 2014-2024 Ram 4th and 5th gen Trucks | The Ultimate Guide

[@CJCOffRoad]

Looking for more info to fit 35s, 37s, 38s or even 40s? Read more on our website: www.cjcoffroad.com/blogs/cjc-off-road-blog/1994-2024-ram-hd-wheel-and-tire-fitment-and-trimming-guide-for-fitting-35s-37s-and-38s

[@allamericanlandclearing6577]

What about 2021 ram 5500. They have the stupid 19.5s on it so tallest tire is a 34... so switching to Northstars I was going to do. Can you clear 40s with a 2.5" leveling kit, and a front bumper swap? Thanks in advance

[@rshanep5226]

My 2019 2500 Cummins fits 37’s on 17 inch AEV Katlas with no rubbing using full Pintop setup. Absolutely love it.

[@CJCOffRoad]

Those are a +27 offset wheel which is perfect to fit a 37/12.5 with minimal to no trimming on these trucks. It's a great wheel!

[@jeffreyroberts6857]

​@@CJCOffRoad can do one on gm trucks too

[@williamholtzclaw9372]

If anyone thinking about doing this listen to these guys recommendations and you won’t have any problems. 17x9 with 18 offset and just a very little rub on the plastic flair when turned all the way. I can live with that and no cutting

[@ericpcronic]

You guys were instrumental in providing info for me prior to my 2022 Power Wagon build. Been running 38x13.50s since day one!

[@LenTexDIY]

37s are the ONLY way to go, in my opinion. I've got them on my 2020 2500 (in my profile pic) on +12 offset 17" wheels. Thanks for the video!

[@Wanderlust073]

Same but +20 on 18s - love it

[@Rc51con]

Nah. But I appreciate your opinion 😂

[@stevenglincosky2393]

Love this truck and it looks incredible with 37s

[@coomikaze21]

I have Carli Commuter with BFG KM3 37x13.50x18 21 2500 6.7 with either 0 or +20(not sure which offset I have) and there was minimal rub after some trimming but zip tie the plastic back no rub on road but still some offroad under max articulation. Wish it was 12.50 instead and would probably have no rub so when this set wears out will probably be 37x12.50x18 KM3, love the KM3s amazing off road tire.

[@sduncan6868]

You 1.5 Leveling kit with the 2.0 Fox shocks and front track bar allow me to run 37x12.50x17 ridge grapplers on 17x8.5 Raceline Minster beadlocks with +18 offset with very minor trimming . This is on a 2022 Power Wagon. Ride quality is outstanding.

[@CJCOffRoad]

That right there is the magic of proper wheel specs!

[@sduncan6868]

There’s a pic on the website in the reviews.

[@hibiki54]

I'm running 37/12.5/17 Nitto Trail Grappler MTs on my Power Wagon with 0 offset Raceline beadlocks. Stock suspension. Had to do plastic trimming and grinding/cutting of the pinch welds. Still rubs a little on the radius arm or sway bar when fully locked and guaranteed rubbing when fully articulated.

[@CJCOffRoad]

That's a tough tire since those and Toyo MT have such large side lugs that they actually run way over the stated size. Moving to a Ridge Grappler would actually gain you a bit more room. That said, those Trail Grapplers are hard to beat in mud and crawling terrain.

[@HillStreet7933]

I have a 8" suspension lift on 38x15.50x20's .... love it

[@robertreedpeterson3217]

I have a 2023 Ram 3500 dually. You mentioned finding 8.5-9” deep wheels, what’s the main concern here. I know you’ve put 37x12.5” tires on the stock dually 16 rims which I believe are 6.5” deep. I love the stock look but don’t want to risk something that’s out of spec. Thabks

[@CJCOffRoad]

You're good to go using the stock wheels on a Dually. We actually have a few builds just like that we've posted on YT.

[@Jblanch16]

Awesome video! Can you guys do the exact one but for ford??

[@CJCOffRoad]

Coming soon!

[@noosh8316]

Yes, agreed. Need the Ford video too for wheel ideas for my 2024 Larait.

[@eldedo8927]

WIldpeak R/T01's 37x13.5r17 +25mm offset & Ty Vole trim kit, gained a bit over an inch of clearance and it looks stock.

[@socalexpeditions]

Now I want Trail Readys! Great video. And I'll comment 17x8.5 +0 4.75" BS with a 37x13.5r17 will require some good work. Enough to where I'd rather have stayed on +6 with a 37x12.5. Way less work involved to fit!

[@NorthGaLife]

Several gen5 ram 1500 running readylift 6in lifts are riding on 37in tires.

[@rbljackson]

Really need some help with something that isnt talked about that much on these trucks. For a guy who likes to hunt, late season hunts can snow and ice in addition to mud and uneven two track roads. To run v bar chains on front and rear in bad snow and ice conditions, can you do a video that incorporates THAT factor into the lift/ tire size/ offsets, etc please?? This video was real information for tire fitment on these trucks, but overlooked that key factor (running chains). Great info though...thanks! I keep looking at these Rams, and at some point will have to decide what direction I want to go for a solid hunting/daily driving/ camping/ all purpose truck

[@CJCOffRoad]

In your situation, you'll want to run a 35" tire with a +18 offset wheel. That will give you the room needed for chains, as a 37 definitely pushes things a bit to much.

[@kevinwest8278]

Random question... I have really considered buying a Carli 3.25" system from you guys for my 2022 Ram 2500 Limited 4x4... I have also been weighing the 35" vs 37" but one of my bigger limiting issues is my garage. I live in Colorado so I like being parked inside on colder days (keeps the truck warm). My garage clearance is just under 95". Would you guys mind telling me how tall one of these newer Ram diesel 2500s is (include the satellite antenna please) with 37" tires and a 3.25" Carli lift?

[@CJCOffRoad]

They sit right around 85" at the cab so you'll be good to go!

[@williammccaslin8527]

I have a 2010 Dodge ram deez, that I was going to put 35's on. But now I'm wondering if I can go to 37's. Only have a RC 2.5 in leveling kit on it, no other mods, or upgrades of any kind. Not sure of what tire I will run, but it will be made in the USA, an a MT of some brand, unless you can recommend a foreign mt tire, money being a big decideing factor. Kinda lost on this offset aspect, but sounds like 25 offset would be right. Wanted to stick to my factory wheels, but from everything I watched an read, this may not work, not against pushing the wheels out some. As I have 3 in fender flares that were given to me for my truck. It is 50 % on road an 50 % offroad. But I live in Fla, an we have swamps with muddy dirt tracks, hence the reason for MT's. As I 've almost got stuck on muddy jeep tracks in our area with street tires, an we flood alot during hurricane/rainy seasons, not looking to relive any of that. BTW, I'm a retiree an built many big rigs 40 yrs ago, an not looking to build big rigs anymore, more about dependability an getting to my hunting spots in the woods, Any help would be appreciated, thx Bill

[@senrusho]

but what about a power wagon? It's got a factory lift and different wheels right?

[@AzraelIgnis]

My friends: Why you drive such a big truck? Me: Because an RV doesn't fit in parking garages.

[@DavidBrown-jt7yi]

Thanks for the great insight. Non of this pertains to trucks with factory air suspension, is that correct?

[@CJCOffRoad]

Actually all of this applies! Fitment is the same.

[@keithmcelroy3142]

lol i have a leveling kit and stuffed 37s

[@JammieTaylor-u3f]

I have a 21 2500 with 4.5"-2" ready lift on axe 22x12 with -44 on 37x13.5 . Question I have is, I get pinch weld rub on passenger side only. Any thoughts on why just the passenger rub. Ty also will going to 12.5 take that away. Looks like it tracks right.

[@TheElderOne2003]

How much of a hit does towing capability take with the larger tires? I already stepped up to 35's and haven't noticed much difference but going another size and leveling idk.

[@CJCOffRoad]

There's no change in towing capacity.

[@hellofreeman6653]

Great content!

[@JamesSmith-ep7et]

How different does the Thuren 2.75 lift kit sit compared to all these Carli 3.25 kits? I get that the numbers indicate a 1/2 inch difference but is it that in real life? I still have yet to see a Thuren equipped truck featured here? Would this Guide work for Thuren 2.75 kit as well? Thank you!

[@CJCOffRoad]

Tire fitment is identical and the height difference is exactly what you mentioned! The wheel specs make the difference in fitment rather than exact lift height.

[@Toglander]

I have 2023 Power Wagon with 35’s and would love to upgrade to 37’s. However, how are any of these builds carrying a spare since the factory location will only fit up to a 35?

[@CJCOffRoad]

These trucks have an open front diff when driving, so you can just run the stock sized spare up front. We also have a bunch of in bed tire carrier options if you want a full size spare.

[@mikec8430]

Do you have videos for Ram 1500’s

[@CJCOffRoad]

On those trucks 35s are the largest tire we recommend.

[@r8wperformance163]

I have a 2024 Ram 3500 dually with factory rear air. How can I clear 37/12.50 tires with the least amount of rubbing or trimming? Can you point me to a quality suspension set up and a tire/wheel package that would work well please?

[@jackklassen9921]

Interested to know if you got an answer and what the outcome was…

[@Name__Pending]

Haven't done a lift yet. how would 37's fit on a stock 2020 3500? Was thinking +20mm or so would be the least amount of trimming. The truck came with mudflaps but im guessing i'd probably have to remove them on the front either way?

[@CJCOffRoad]

It's definitely possible with some trimming work on the plastic fender liner and pinch weld! The flaps would need to come off though.

[@joeparga1070]

I hate my trucks set up , I have a 17 per with thurens 1.5 inch coils up front and a 37x12.50 Toyo rts with +18 wheels and rub so hard even after tons of trimming and grinding

[@Mr.Producerrr]

What suspension do these guys have (lift kit inches ?)

[@CJCOffRoad]

The trucks shown vary, but anywhere from 2.5" front and stock rear to 3.25" front and 1" rear.

[@topnotchautomotiveinc.4784]

NICE SHIRT

[@BayouBengal81]

I have a 23 RAM 2500 6.7 Laramie and about to put a 2.75" Thuren leveling kit in it with fox 2.0 shocks all around and new front springs with trackbar. Any idea on the amount of trimming I will need with 20x9 +12 offset wheel wrapped in 37x12.5s?

[@CJCOffRoad]

You should only need minimal trimming of the fender liner and the bottom edge of the pinch weld for that wheel/tire spec.

[@zackaubin5139]

I have a 23 2500 with the 6.4L and 3.73 gears. I’m assuming 37’s will take some power and fuel mileage away since it doesn’t have the power of the 6.7L?

[@CJCOffRoad]

A little, but you're still totally fine running 37s. That Hemi is a plenty capable engine!

[@keithkoke1278]

Will negative 18 wheels work on my 2021 power wagon?

[@CJCOffRoad]

We wouldn't recommend it!

[@user-xi9pz3ow3g]

Can you fit 37 with a ranch hand

[@CJCOffRoad]

The bumper alone doesn’t really change tire fitment.

[@camron1501]

Thank you.

[@peterk5460]

Can I run 37s with complete stock truck? What's the negative?

[@edleifer6719]

it looks like overkill on a stock truck, your mileage and breaking power will take a hit too.

[@pistoncount]

Thank you !!!!

[@tenzinnamdhak]

What about 1500 ecodiesel?? Is 35inch better for 1500???

[@CJCOffRoad]

yeah 35 is as big as you can go with stock fenders on a 1500

[@tenzinnamdhak]

@@CJCOffRoad what about 315/70R17 tire size? Do you think it will rub given that it has 12.4"? BTW what is the best specs of 35 inch tire? Thanks again....

[@nickpendergast4146]

So I’m getting a 2024 ram 1500 big horn, with a 3 inch level kit will I be able to fit 37’s? Or will it rub?? I was told only 35’s will fit but I’d love 37’s

[@CJCOffRoad]

You'll want to go no larger than 35" tires. Our ideal specs are a 18x9 -12 offset wheel with 35/12.5/18 tires for Ram 1500s as a max size.

[@edleifer6719]

@@CJCOffRoad with a 4 inch lift you can run 35/12.5/20 on a 20x10 wheel +12 offset with no rubbing or cutting involved.

[@joe7528]

If I have 3.92 gear ratio on a 2014 Ram 1500 rwd can I run 37 inch tires without issues?

[@edleifer6719]

yes as long as you can clear your fenders.

[@joe7528]

@@edleifer6719 I plan on doing a 7 inch lift

[@AndrewBaker-s9x]

How would I fit 37s on a stock wheel

[@CJCOffRoad]

Running stock wheels with 37s is a bit tricky, since the factory wheels are +40 offset which is about 20-28mm too far in. As a result, you hit the radius arms and sway bars with the tires when turning lock to lock. You can either cut the studs and run a bolt on spacer that makes up that gap with the stock wheels, or go with an aftermarket wheel in the right specs. Since we aren't too fond of cutting wheel studs, we'd suggest the aftermarket wheel route.

[@thechisolmranch]

Where are yall located

[@CJCOffRoad]

Long Beach, Ca

[@Wanderlust073]

Now if only my icky concepts molle panel would ship so I could mount my spare 37 w/o losing a third of the bed…….. ;)

[@CJCOffRoad]

We're working on it and should be shipping them next week or the week after!

[@navseal345]

👍👍

[@cbboiii1100]

5:19 that's a bad mf!

[@sethperry1323]

What about 40's?!? 40s are the new 37! 😂

[@edleifer6719]

maybe a half dozen years from now.

[@toofastnobrakes]

Soooo -12 is too wide???

[@CJCOffRoad]

Yeah way too wide to fit 37s well.

[@toofastnobrakes]

@@CJCOffRoad ok, so what would you suggest for running 37-12.50 18’s with a 2.5in level lift?