After reading a thread on another forum [Chevy truck forum], I got to wondering if the stock wheel of a 2-wheel drive Jeep JK had around 4" BS instead of a 4-WD's 6". It was said on the thread that 4-WD Chevy trucks had about 6" BS and a 2-WD Chevy truck had about 4'BS. If this is true with Jeep JK's, then we could use 2-WD JK OEM wheels to solve the problem with wider tires. Anyone know the backspacing of the 2-WD Jeep JK ? AND by the way, this is my first post !! I have been reading for a couple years even though I bought my new 2010 2 dr.JK sport [6 speed] last may.This is my favorite forum , have learned tons from here . you guys and gals are great!!