Tires

[MrBigBirdMK]

I recently purchased an 86 Comanche. I need new tires on it and was wondering if any one could tell me how big i can fit on the truck with out lifting it? I would like to put 31 or 32 inch tires on it. Thanks for any input.

[Eagle]

On stock Jeep rims, 31x10.50-15 is the largest with no lift. They will rub slightly on the lower control arms in sharp turns.

 

30x9.50-15 is a better compromise for a stock MJ, but they still probably rub the LCAs a little.

[jpdocdave]

imo 31 is too big, I had 30" mud terrains on mine and they rubbed at full turn only in one direction, but they looked good.

[JACKED88]

they rubbed at full turn only in one direction,

:hijack: Whats up with that??? Tires that rub but only while turning one direction. I'm only running 33's with a 6+ inch lift and I've checked and triple checked my axle and made sure it and my steering were both centered but it still rubs the lower arm at full left lock. :dunno:

[jpdocdave]

probably something to do with the weight of the driver in it, and how the suspension wears. It isn't an indication of anything being wrong.

[Eagle]

:hijack: Whats up with that??? Tires that rub but only while turning one direction.

On my '88 Cherokee I'm running a '92 XJ track bar. I could not see or measure any difference in length, but it offset the axle a fraction of an inch so it rubs turning one way but not the other with 235/75-15s on. With 31x10.50s on it rubs both ways.

[Pete M]

an easy cure for tire rub is to adjust the steering stops. :thumbsup:

 

a better way is to swap in WJ lower control arms.

 

31s on Jeep rims with WJ arms and no rubbing on the street:

 

[jimoshel]

Just looked at a 1989 XJ with 31.50X10.50X15 on stock rims. No lift. There is a a small rub mark on the right hand LCA and a just barely noticeable rub mark on the left LCA. No marks on tires. From what I saw I'm not going to worry about it. If I wanted to do something about it I believe I would just heat the small rib a little and hammer it up next to the main part. Another idea would be to cut a arc out of the bottom side of the LCA. If there was any worry about weakening it then weld a piece in the bottom, closing the 'U'.

[Pete M]

WJ arms. more clearance and more strength. :D