Off Roading Forums banner

31" on front 33" on the back???

507 views 6 replies 1 participant last post by  **DONOTDELETE** 
G
#1 ·
31\" on front 33\" on the back???

I've got a friend that has some BFG trail tires with great tread, and nice rims. the front tires are 31"s and the back are 33" will they work on my CJ, I don't have any lift yet but i have to do things one step at a time. So what do you guys think? Thanks...Kyle

If you can't break it, Try Harder
79 CJ-7/304/T-18/Dana20/No tires(yet)/rust
 
G
#2 ·
Re: 31\" on front 33\" on the back???

won't work. you can't run different sized tires on a 4x4. it'll eat your x-case.

brian wilson
80 cj5 "high 5"
stretched to 100" wb
351w/np435/d300/d44/d60/detroits/4.56/35ss/bdlocks
 
G
#3 ·
Re: 31\" on front 33\" on the back???

no can do unless you run miss matched gear ratios. as an example for 31 on front 33 in rear you need 3.89 in front and 4.11 in the rear. you will destroy a dana 20 or 300 pretty quickly if tires are that badly mismathced.
jjc
 
#4 ·
Re: 31\" on front 33\" on the back???

Yep, it'll kill them in short order. However, you could air up the front and decrease the air in the back so they're the SAME size (distance from axle center to ground), then it would work in slow speeds only. I still don't rcommend it though.

JEEPN
'81 CJ-8 Scrambled!
GM151/SM465/NP205 twinstick/7" Lift/33" Swampers/REP 8000/RS9000's/Scout II D44's F&R w/4.10's & Lockrights
 
G
#5 ·
Re: 31\" on front 33\" on the back???

What if I'm only useing 4wd in slippery stuff. Arent the front and rear gears diffrent and way? Does it make a diffrence if I'm only running in 2wd?

If you can't break it, Try Harder
79 CJ-7/304/T-18/Dana20/No tires(yet)/rust
 
G
#6 ·
Re: 31\" on front 33\" on the back???

it only makes a difference in 4wd. you can say that you'll only be useing the 4x4 in slippery stuff but you never know just how good your traction is so i do not recomend it.

brian wilson
80 cj5 "high 5"
stretched to 100" wb
351w/np435/d300/d44/d60/detroits/4.56/35ss/bdlocks
 
G
#7 ·
Re: 31\" on front 33\" on the back???

Ok thanks. That really sucks. I could have had a nice set of rims and tires.

If you can't break it, Try Harder
79 CJ-7/304/T-18/Dana20/No tires(yet)/rust
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top