Ive a 96 xj and im thinking about getting a 4in lift would 32 11.50's be ok? And with a 3.5 would 31 10.50's be fine ?

 

my buddy has a 2 inch lift with 31's. had to cut fenders and still rubs every once and a while but with a 3.5 your good. id imagine another inch of tire on a 4 inch would be straight

 

Lift/tire combos (this is with out trimming)

2" = 30x9.5

3" = 31x10.5

4" = 32x11.5

5" = 33x10.5

6" = 33x12.5

7" = 34x12.5

8" = 35x12.5

 

Depends on how much flex you get, sway bars disconnected, offset/backspacing of the wheel, bump-stops and trimmed fenders. All those factors have be accounted for.
I fit 31 X 10.50's on 2 inches of lift, I didn't need to trim the fenders because I used a bump stop drop kit. The rubbed on the LCA's at full lock because I didn't have enough backspacing.
Other than fit, is stress on your drive train components and steering. If you're under 33" you should be ok with stock parts.

 

thanks!!! that helped alot!

 

im going with a 4.5" suspension lift and a nice set of 80% tread pro comp mudder 32" 12.5's on real nice 15's i got for under i 100$ im assuming it will work width wise eh screw it