Do you need to Regear for Larger Tires? Jeep Gladiator Rubicon

Is it really necessary to regear when you go to larger tires? I've been running the factory 4.10 gears on my 2021 Jeep Gladiator Rubicon with 37s for 12,000 miles now and decided it was time to regear so I took it to Mud Connection 4x4 in Little Rock, Arkansas, to put in a set of 5.29 gears from Nitro Gear and Axle. Is it worth it?
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[@exploretography]

Congrats on the new gears! Loved the tour.. a big shop! looking forward to seeing the long run outcome of regearing! Thanks for sharing!

[@StartBuildingYourDreams]

Just test fit my 37x13.50r17 Toyo’s on my Rubi w/Manual Transmission. Even on stock tires 6th gear really doesn’t seem to have any power until you’re up around 65-70. You’ve really done a great job of showing what these Jeeps can do. Truly some epic trips! ~Jon@SBYD

[@deancarr4507]

My dad bought an '84 CJ7 Laredo when I was 9, that's the vehicle I learned to hold a flashlight in lol! Helped him rebuild the 3 speed auto with a shift kit, and later got to drive it when I was in high school in the early 2010's. It was such a beautiful jeep, forest green with dark gold and light brown striping/decals. Had the really rare nutmeg seats and soft tops. We put a 3" lift and 33" mud terrains on it, had the venerable AMC straight 6 that didn't pass 100,000 miles until my little brother was in high school a few years later. Left the factory with every bell and whistle available, even had working AC and a clock in the dash, with every type of door and top you could have. Very fond memories in it, many trips to self serve car washes to get the Georgia clay off before getting home hahaha! He later sold it to help my brother get a new car for college. I hope to track that one down one day...

[@kevinpeterson8382]

Awesome upgrade

[@Jeep79]

Thx for sharing bro great video

[@scottbruce9872]

Great vid. Originally watched due to regear and the shop walk around was a big plus.

[@OzarkOverlandAdventures]

Thanks!!

[@trackexplore]

We've got one of those national luna fridges (in Australia). Absolutely love it.

[@jimedwards8958]

Would love a visit there but a long way from England. Great vid as always.

[@jerrytaylor2743]

There the only ones I trust as well, great shop!

[@bobvedder2451]

I deliberately stayed with 35 inch tires so i wouldnt have to regear my gladiator. With the two inch mopar lift, it works for my use up here in Alaska.

[@JEEP-N-DIRT]

My 2018 JLUR 3.6 V6 on 37's and 4.88 nets me15.5 avg around town, and up to 18 mpg on the highway depending on the type of road. Just went from Georgia to New York up I 81 to overland on some of the MABDR and these numbers are from that trip. And that was running 73mph at about 2200rpm. This info just for reference for anyone looking to compare. The lowest on the highway on this trip was 16.6 but most stops I was doing the manual method for checking and saw 17.4 avg. 4 people, full baggage (wife, daughter and her friend lol.) Not sure of my jeep weight, but it has a soft top, LoD rear bumper and tire carrier, LoD rock sliders, Rugged Ridge front bumper and RR flat fenders.

[@somewheretoday]

I had never heard of Mud Connection until now. Looks like a great place to go for upgrades. I do my own work since I am I am have been a Toyota mechanic for over 30 years. I did4.88 gears in the JK(should have went with 5.13) and 5.13 in the TJ , gears are definitely not something you want to tackle in your driveway. MPG I always smile when someone asks, my response is about 5 or 6 gallons per hour on the interstate or 3 hours a tank on the 2 door JK. I wish I could have made the Rendezvous but thats our anniversary weekend but who knows maybe next year. Stephen and myself are looking forward to the Patreaon weekend. Keep up the wonderful work on the videos! Oh yeah. Hello Cara.

[@frenchie4wd]

Hey!!

[@NigelNaughton]

Oh.......That Land Cruiser 80 in the shop tho!!! Pretty! I guess I like that shop ;-)

[@trey9540]

Wow. The difference between a gladiator Rubi with a 3.6 and a JLU Rubi with a 2.0 is big. My 2021 JLU Rubi with a 3.5” lift and 37” tires (tire and rim combo weigh 121# each) gets 16mpg average mixed driving. I see 8th all the time. It shifts to 7th a little sooner when going up hill. And it seems to do good Offroad so far. I’ll be at hot springs ORV park this weekend to test it out again. I was set and ready to get regeared to 4.88 or 5.13 but I’m definitely rethinking that for the time being. The engine does not seem to struggle and my transmission doesn’t hunt for gears. And I dropped roughly 3mpg from stock. I just can’t find a reason to swap out gears…yet.

[@jessicamathews5758]

We were there last week trying to find us a rack for our rooftop tent.

[@VideosOffRoad]

I did make it to Rendezvous in the Ozarks 2021, after driving just over 1,000 miles one way from out West to get there. It rained pretty much the entire time I was there (plus more than 2" of rain on Wednesday, the day before I got there). After 2 days I couldn't take it any more, and bugged out on Friday. It looks like it would have been a great event, had it not been held in a swamp. I hate hate HATE mud, so I won't be going back. Though I did get to see some very cool rigs and camp setups, and met some very nice people. That part was great.

[@OzarkOverlandAdventures]

Unfortunately the weather can't be controlled. Friday afternoon and Saturday were beautiful days. I hate that you left and didn't get to experience that. We had a blast at Rendezvous in spite of the weather.

[@VideosOffRoad]

@@OzarkOverlandAdventures Yeah, I'm bummed too. I left around noon on Friday. I could only stay until Saturday morning anyway, in order to get back to work on time. Hopefully in future years it will be dry and more enjoyable for everyone.

[@capt.stubing5604]

I use all 8 gears on 37s with 4:88s and get 17 mpg plus on the freeway.

[@bobvedder2451]

When i was in the army in Germany, we had a mechanic who went along with johnny cash's song about the caddie he built. My buddy mechanic ordered all of the parts for a M151 jeep and built it behind the motorpool shop. He drove it around for a while until it was discovered on an inspection. It was confiscated and he got sent back to the states. The commander got the neep. But before my friend left the country, he painted the WHOLE jeep bright yellow- windows, tires, everything.

[@BlueLabelDrinker]

Kind of a bummer that they just let your calipers hang by the brake lines...?

[@RidinChevySolo]

It is most definitely needed. I have 4.56's with my 37's on my 1500 sierra that has a 5.3/ 6 speed. Have fun with that 500 mile break in.

[@OzarkOverlandAdventures]

I think I've already hit the 500 mile mark.

[@RidinChevySolo]

@@OzarkOverlandAdventures nice. I just had a new gears installed in my rear differential. (Tried to yank a duramax with a 15k trailer outta a deep ditch.. lol) anyways messed up my ring gear and pinion gear pretty bad so i got a whole new set, went ahead and got a new yukon locker too. Im on my 500 mile break in. Ughh its killing me. 😫

[@jlrhodes79]

I definitely want to put 4.88 in my LJR pretty soon. And I’ll definitely be seeing at RITO.

[@capt.stubing5604]

4:88s are a must on 37s, love mine.

[@jlrhodes79]

@@capt.stubing5604 I don’t know if I’ll ever go to 37’s. But I do eventually want to get a small off-road camper.

[@groberts1980]

I have a 2-door JK Sport that I regard to 4.88 and I'm happy. My wife has a JT with 4.10's and with the 8 speed transmission we've felt no need to re-gear running 35's. It would be nice if Jeep would do 4.10 gears standard on all Wranglers and Gladiators and put factory 4.88's or 5.13's on the Rubicon.

[@LarryRichelli]

There is a package now that when you order your new wrangler or JT that comes with 35" tires and 4.56 gears. It also comes with other things like a tailgate reinforcement and more that I can't remember.

[@DarksideOffRoad]

Wouldn't be an OOA video without a mini fridge review! 😄

[@OzarkOverlandAdventures]

😂😂😂

[@orangeblurr75]

I have a jlu diesel with 3.73 on 37s and get 23 at 70 mph on the interstate

[@freedomrevival1375]

I thought the recommended break-in is 500 miles, I wonder if that partially caused your later pinion tear.

[@cementtacocalifornia5638]

Thinking of getting 5.29 Nitros in my rig too!

[@OzarkOverlandAdventures]

5.13 would be better for MPGs but they came in real handy pulling my little camper.

[@cementtacocalifornia5638]

@@OzarkOverlandAdventures I’m getting an Off Grid Trailer in January

[@two-wheels7397]

What impact does regressing have on warranty?

[@nightlighton]

I average 14.5 city n 16 mpg highway in my 2008 on 37 inch with beadlocks. 5:38 ratio

[@wranglerlife4ever42]

I think 4.88 gears would have been a good match for 37s. You would have most likely hit 15-16mpg no problem

[@alfa8822]

Great video as always! I just put a deposit on a new 2024 Rubicon X. I get a choice of two rear axle ratios. 4.56 and 4.88. I opted for the 4.56 because I don't plan on going bigger than 35" tires. I will have a roof top tent, frig, and recovery gear. Should I go for the 4.88? I am undecided. I think I would get worse mileage with the 4.88. I only have maybe a 20% change of moving up to 37" tires someday. Seems to me that Jeep designed this to work with 4.56 and it should be fine.

[@OzarkOverlandAdventures]

We have 4.56 in my wife’s JLU and it’s great!!

[@Williamsfarm]

I have a 2018 jk its stock im wanting to go with a 33 tire will i need to change my rear end or will it be ok? Thanks

[@krasnaludek298]

I’ll be going from 35s to 37s on my 2018 JL Rubicon with 4.10s. I spend 99% of my time on the pavement; no sense in lying or pretending otherwise. Zero need for me to change gears, as the engine & trans setup is excellent in these newer Jeeps. Had a Toyota Tacoma & the transmission was horrid by comparison. Now, for a guy like you that’s out on the trails so often; I get it completely. Plus, your rig is heavier as loaded than mine.

[@OzarkOverlandAdventures]

The real question is, when on the interstate doing 80mph, what gear are you in?

[@-DestinationNoWhere-]

I get 14.6mpg on 37s with Nitro 5.13… (Mountainous PNW)

[@newlifeoverland226]

Matt any updates on how the gears have performed with mpg and towing now 4 mo later? I know you mentioned in in a more recent video but I don’t think you mentioned a mpg improvement. Our 21 jtr is averaging about 12.5-12.9 with 37’s and really struggles on a tall hill climb on the interstate. I’m scheduling my install this week and really torn between 4:88-5:13 heavily leaning towards 5:13 but may be in the same boat you were with availability.

[@OzarkOverlandAdventures]

the gears are awesome!! Highly recommend!! Did get a slight increase in MPGs but having 7th and 8th gears back, it just drives so well!

[@timpille8495]

Do a run down on cost of gear swap

[@OzarkOverlandAdventures]

$1500-1800 depending on gears and setup n

[@vegasfordguy]

I would have thought you'd get better gas mileage with 4.10 gears paired with the 8 speed automatic. My 2008 JKU Rubicon with the 3.8 liter engine, 4 speed automatic, 4.10 gears and 35" tires averages 16 mpg on the highway at 70 MPH. At 70 MPH it turns 2,000 rpm.

[@OzarkOverlandAdventures]

My JT is a lot heavier than your JKU and I'm running 38s.

[@davevestal7135]

When and where is Rendezvous in the Ozarks

[@OzarkOverlandAdventures]

This weekend at Byrd's Adventure Center near Cass, Arkansas.

[@bigalforsyth]

Longterm update on gladiator regear??

[@OzarkOverlandAdventures]

Fantastic!! Highly recommend.

[@geographyinaction7814]

The moment you go bigger than a 33", you need to regear. You can't just drive around and say, "Oh yeah, this is fine...". Your vehicle is designed a certain way, and if you decide to move that much weight, with the loading from the weight of the centrifigul force of a much heavier wheel, you will cause damage. Also, most people just don't change their tire/rim set-up. They add bumpers, winches, lift kits that may or may not weigh more than stock, fridges, gear, RTT's and trailers...so much harder on your vehicle. Think about that?

[@Luisito3398]

If you mind me asking, what did you pay for it all? I'm new to the Jeep world and just bought a 21 Rubicon gladiator. Thanks and nice jeep

[@OzarkOverlandAdventures]

Regears run between $1800 and $2500 typically depending on the shop and gear availability.

[@timmcnulty985]

In your opinion if you are currently running 35/12.5/17 tires and plant to install air lockers would you install 4:88 or 5:13. I plan to buy 37 in 2 years.

[@OzarkOverlandAdventures]

That's a tough one. 5.13 would be better but that's going to suck with 35s until you move to 37s.

[@timmcnulty985]

@@OzarkOverlandAdventures that's what I thought. Just got a great deal on a rear gear with Yukon gears and a front arb installed for $2600 and that includes the air compressor. Thank you will do the 4:88.

[@ashebarley77385]

What’s the cost of that? And you waited on them while at the shop? I live in Texas so need to know?

[@OzarkOverlandAdventures]

$1500-$1800

[@j.l.5966]

@@OzarkOverlandAdventures wow that’s pretty inexpensive considering you got a quality product installed at a highly reputable shop. I’m in Houston and I’m getting quotes for Dana Spicer 4.88s installed for $2100-$2300.

[@danbrown4205]

I’m curious as to how fast you drive on the highway?? I have a 2020 JT Rubicon with 37s running the stock 4.10 gearing (roof top tent, decked system, fridge, etc). On my last two trips, one to TN and one to the Outer Banks. I averaged 18.8 and 18.5 mpg for the trips. That included highway and off road driving.

[@OzarkOverlandAdventures]

75-80 (speed limit is 75 here). Are you accurately recalibrated for the larger tires? meaning you measured them with a tape measure and put that into the programmer instead of just saying 37?

[@LarryRichelli]

@@OzarkOverlandAdventures It's funny, I just watched a Tazer JL video by Wayalife and he said with the newer Tazers that you did not need to measure the tire but just to put in what the tire said on the side of it. kzbin.info/www/bejne/bmLClql4bqanaas

[@danbrown4205]

@@OzarkOverlandAdventures thanks for replying back. Yes, I'm correctly calibrated for my 37s. Speed limit here is 70, and I typically don't go very much past that unless I'm passing. That extra 10 mph plus the gladiator has the aerodynamics of a brick could be the difference.

[@hotmugatushouseofwheels8922]

🤙🤙🤙🤙

[@tacoma_jon]

Alright Matt. You’re to the point where you get a thumbs up before I even watch the video. 👍🏻

[@OzarkOverlandAdventures]

😂😂😂

[@SuperSilence23]

My diesel gladiator gets 8th gear on 37” tires

[@jamesmcgarry8660]

With the factory 3.73's? What's your MPG?

[@SuperSilence23]

@@jamesmcgarry8660 I was showing 17 combined and I just rrecalibrated and I haven’t driven it since. But I’ll let you know what the actual mpg is once I drive it this weekend. And yes it’s with factory gearing.

[@47katt]

Come right in , sit right down , at , Alices resteraunt !!

[@OzarkOverlandAdventures]

huh?

[@invictuscenturion8468]

Finding a shop, let Lone a decent one is not so easy in ohio.

[@rockcrawlinnut]

Do you know if there Is there anywhere close to cambridge?

[@jaeger306]

Dude!! You gotta do something with that hair!!! No MAN has hair like that!!!

[@OzarkOverlandAdventures]

So just what does a MANs hair look like. Cuz I’m a MAN with this hair? 🤷🏼‍♂️😂😂