does anyone know what off set i would need for my wheels if i get a 6 inch lift please let me know thanks

 

it really depends more on what size tire you intend on running moreso than the amount of lift. 35, 37, 40?

 

i will be running 37 on 20 inch wheels

 

offset would depend on the wheel width, but backspacing would stay the same.

i would guess 4" of backspacing.
this would be 0 offset on a 8" rim or -2"(-10mm) offset on a 10" rim

i doubt you will find a 20" rim with that amount of negative offset. most i would think have a positive offset (bling-bling hummer or expedition wheels)

 

going with 18's dont have my offset 4.5 in 20's on the kmc kd spy rim i want

 

shoot for a 4.5BS and you should be fine. wider wheels like 20x10 will stick out further than say a 20x8.5 with a 4.5. Both should work with that amount of lift.

 

just wondering, why 20s?

 

i dont know this is my first time having a jeep before this i only had luxury, or sports cars so im not used to buying rims for off roading i used to buy for looks you know with low pro wheels and my buddy has 20's on his dodge 2500 with a six inch lift and 37 and they look really nice but i guess since ill be rock krawling and mudding the smaller wheels would be better at least thats what everyone tells me

 

If you're going to be offroading, more rubber is better. 20inch rims on the rocks will probably make you want to cry after 1 run.


Plus, the costs tend to be cheaper overall with tires with big sidewalls.

 

I'd say read up some more, figure out how agressive you are going to be offroad. There has been a small number of Jeeps that actually pulled the 20"s off (a few were at SEMA) and they looked good but the guys on here are correct, you will get better off-road performance with a smaller size.