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Tech Terms - Backspacing


Backspacing is critical on the Jeep to allow the tire to tuck inside the wheelwell when it flexes, and to allow you to turn the wheel with something resembling the original turning radius
Wheel measurements illustrated
As far as I can tell; unless noted below all stock 15" Jeep wheels (MJ, TJ, XJ, YJ, ZJ) come with 5.25" backspacing, so when you lift it and go to wider tires it's critical to use less backspacing to move the tire out farther to avoid the springs and/or control arms when turning and flexing.

Rubicon wheels are 16x8" with 5" backspacing

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created: December 29, 2003