Re-gear

[Jroy]

Do I need to re-gear my 2022 jeep wrangler Willy’s to run 35 by 12.5 tires

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[SBLACK502]

No, you don’t HAVE to. But depending on your driving conditions you won’t see 8th gear much and MPG will suffer some. I have a 2021 with 35’s and have no issues other than what I already said.

 

[Some Random Guy]

If you start thinking of a regear I would highly recommend you compare to an axle swap instead. Rubicon 4.1’s would handle those 35’s fine. Then you don’t have to go through the nightmare if finding someone competent that will stand by their work if something goes wrong with the gear setup.

 

[Tncdrew]

Auto trans? Engine? That matters.
'22 Willys here. 3.6/auto.
IMO, the stock 3.45 gears were dismal at best, even with the stock 32" tires.
I re-geared to 4.56 and went to a 34" tire.
By far the absolute best mod I've ever made! It drives now the way it should have from the factory. An increase of tire diameter = a decrease of performance... that's physics.
You can try the axle swap route, however, based on your type of offroad use, it's quite a bit more work than a simple gear swap, and I don't 4.10 is ideal for that much tire.
Re-gearing a Jeep is not rocket science ?

 

[ParadigmDawg]

Do I need to re-gear my 2022 jeep wrangler Willy’s to run 35 by 12.5 tires

Matters what motor you have and what your goals are. I have 3.73s on 37's and it is phenomenal on and offroad. I assumed that I would regear after my build but my shop said to take it out as is and see what you think. 2 days later, I ran 4 Badge of Honor trails after a 450 mile road trip. It seems about perfect. Since then, it has been driven a lot more miles on and offroad and I have decided not to regear.

 

[grimmjeeper]

Do you need to? No.

Should you? Yes.

 

[Jroy]

Auto trans? Engine? That matters.
'22 Willys here. 3.6/auto.
IMO, the stock 3.45 gears were dismal at best, even with the stock 32" tires.
I re-geared to 4.56 and went to a 34" tire.
By far the absolute best mod I've ever made! It drives now the way it should have from the factory. An increase of tire diameter = a decrease of performance... that's physics.
You can try the axle swap route, however, based on your type of offroad use, it's quite a bit more work than a simple gear swap, and I don't 4.10 is ideal for that much tire.
Re-gearing a Jeep is not rocket science ?

I have the 3.6/auto as well
Do a lot of finding mud holes as often as I can which is every weekend or two should I do the 4.56 as well

 

[Tncdrew]

I have the 3.6/auto as well
Do a lot of finding mud holes as often as I can which is every weekend or two should I do the 4.56 as well

Well, that's what I went with, and the combination seems perfect for the eng/trans/tire combo I have.
For me, it came down to the simple fact that the 3.6 has very little torque below 2000rpm.
The 4.56 gearing (with my 34" tires) seems to be the ideal range for utilizing the torque curve of that engine. With the 8-spd trans you have plenty of overdrive gearing for comfort on the freeway (even with 4.56).
With my gearing now, on the freeway, there's FAR less gear hunting, and it's not over-revving at cruising speeds.
I drive a mix of rural/city/freeway (not really much freeway) and with my configuration, average around 19.5mpg.
And it's quite fun off the line too ? (for a V6).

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