Biggest tire I can get with no regearing needed?

[ShelbyDee]

I have a stock Overland 2021 JT. Tires and wheel sizes are 255/70R18 all terrain. I can't stand the way they look lol. However, I don't have the money for a big lift, and regearing. The stock on the Overlands is the 3.73 axel ratio. So, simple answers are needed please What's the biggest size I can go without altering the stock parts? I've read that some people go to 35's but have issues with the gears and MPG plummets even more. So I'm leaning maybe toward 33's? I would love some input and feedback from you guys that know much more than I do. TIA!

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[hjdca]

Personally, with 3.73s, I would not go higher than 33" tires, and look for light weight ones..... I know that is not what you want to hear, but..... that is the way I see it..... especially if you live in the mountains. Flat landers can have more flexibilty, but, I live in the mountains.

 

[ShelbyDee]

Personally, with 3.73s, I would not go higher than 33" tires, and look for light weight ones..... I know that is not what you want to hear, but..... that is the way I see it..... especially if you live in the mountains. Flat landers can have more flexibilty, but, I live in the mountains.

Thank you for the feedback! I actually am in Texas. So it's super flat lol. I don't do any mountain or hill driving. I don't tow anything either. My truck is my daily driver, so I just wanted to keep performance and MPG in mind while also going for a better look.

 

[RCKLNDR]

Thank you for the feedback! I actually am in Texas. So it's super flat lol. I don't do any mountain or hill driving. I don't tow anything either. My truck is my daily driver, so I just wanted to keep performance and MPG in mind while also going for a better look.

33s are going to be the way to go if you’re keepin MPG in mind.

I run 35s with 3.73s and I have no concerns with it but I also don’t care that I hover around 14.5mpg.

 

[USMC-SSGT]

33s. 35s on 3.73 is dog turds for sure. Verified, certified truth.

 

[Painkillerspe]

You can probably get by with Kenda klever 35s in 10.5 inch width it will take a mpgbhit, but on flat ground it shouldn't be to bad.

On my overland with 3.73 I was getting around 16 to 17 on the hwy with those.

With that said, I just regeared to 4.88 and it's a night and day difference.

 

[j.o.y.ride]

Depends where you go and what you do. 3.73 with 35s is liveable if you don't tow and you live outside of mountains or steep hills. I live in the flats so it's fine for me.

 

[ShelbyDee]

33s. 35s on 3.73 is dog turds for sure. Verified, certified truth.

Hahah noted. Appreciate the feedback.

 

[ShelbyDee]

You can probably get by with Kenda klever 35s in 10.5 inch width it will take a mpgbhit, but on flat ground it shouldn't be to bad.

On my overland with 3.73 I was getting around 16 to 17 on the hwy with those.

With that said, I just regeared to 4.88 and it's a night and day difference.

How much was your regear if you don't mind me asking? I've found varying answers. All too expensive for me at this point. lol

 

[Rahkmalla]

and look for light weight ones.....

I'm not saying tire weight doesn't matter at all, but it's nowhere near the effect of increased diameter. It's certainly going to affect acceleration a bit, and definitely affect brake wear. but it's not even close to the biggest issue. The reason you need to regear when going up a tire size isn't because you're pushing 10 or even 20lbs more tire, it's because the 5,000lb vehicle you're moving is now leveraged 18.5 inches away instead of 16.5 inches away (going from 33s to 37s for example). It's the weight of the car you have to move from further away that matters more than the rotational mass.

Ask anyone who's tried to go from "heavy" 35s (73 lbs baja bosses) to a "light" 37 (63lb k02-Cs) if dropping tire weight in any way made up for the increase in tire diameter. it wouldn't.

 

[Lush]

How much was your regear if you don't mind me asking? I've found varying answers. All too expensive for me at this point. lol

I have seen around 2 grand tossed around. I am in the same boat, I really can't afford a regear right now so my plan is to find some willys, rubicon or mojave take offs and run those until I can afford to regear.

 

[Orange01z28]

35s

 

[Orange01z28]

How much was your regear if you don't mind me asking? I've found varying answers. All too expensive for me at this point. lol

The gears, install kit, and covers I bought were about $1200, and I was quoted various prices between $1k and $2k at all the shops I contacted.

I'm going to go with a place that's quoted to run me $1500.

All in all, I would make sure to have $2500-3k available for a gear upgrade

 

[Painkillerspe]

How much was your regear if you don't mind me asking? I've found varying answers. All too expensive for me at this point. lol

Mine was right at 1800.

 

[USMC-SSGT]

I believe I paid around $2300 in the northeast.

side note: prior to regear I was (still am) lifted on 35s. I towed my landscape trailer empty mostly freeway and relatively flat for a 2 hour round trip. Youd think I had been towing the dang titanic. What a miserable experience.

today I towed (for the first time since 4.88) our 20 foot pontoon boat across town. You’d have thought there was a jet ski back there. Night. And. Day.

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