31" tires with stock gears

[nosigma]

One more vote for 31 & 3.55 is ok. I have it on my 145,000 mile 4.0 AW4. Yes it downshifts a lot more. Yes you use more gas. Yes its noticeably sluggish. Yes you should add a trany cooler.

My XJ wheels so much better with 31x10.5 Timberlines on it than it did with the 235-75's I wish I had done it A LOT SOONER. I dont drive mine except to and from trails so I dont mind the problems at all.

I would like it a lot more with deeper gears but I am going to wait for next major upgrade where I go real deep, polish the turd and add 33's. I dont want to pay for gears twice and it works just fine on the 3.55's for now and would highly recommend it.

John

 

[IH8RDS]

99 AW4 3.55

Its fine but could be better. Eats a lot of gas. I regulalry tow my trailer 670 lbs empty with about 200lbs load. Moving up to 4.56 just because I only want to do it once.

 

[Twisted Copper]

I ran 31's with my AW4 auto and 3.55 stock gears for a couple years. I was never happy with the performance. I now run 32's on the same gears and it is hateful on the highway with all the shifting. 4.10's are coming next month.

 

[XgeekstarX]

just put some 31's on my heep the other day and you can tell a little bit of a difference in acceleration, but it's really not bad at all.

 

[ILLXJ]

Red_01_XJ, 4.56 would be WAY to high for 31s..

Nope. I loved it. Wish I had 4.88's for the 33's. JIM.