Alright so i did a RC 3" lift, on top of that the teraflex 1.5" budget boost. I wobble a little at 70km. I called the Jeep Dr in winnipeg and they told me i needed longer upper control arms and maybe a drop pitman arm. i ordered myself some rubicon express adjustable UCA's. From the information i gathered i'm supposed to have 5 to 7 degrees of caster, i'm not sure if thats positive or negative. is positive making the diff point down or point up? Am i supposed to measure off the ball joint? i'm 17 and a rookie back yard mechanic, i need a dummy proof explanation please!

 

Shim out the lower arms about 1/4" and it should go away. You can buy them or make your own like link below. Longer uppers would make it worse. You need positive caster, not negative.

https://www.cherokeeforum.com/f51/lo...emplate-94261/

 

Positive caster will be the lower ball joint farther forward than the upper so it will be aiming the pinion downward