4 wheel drive wobble xj NEED HELP NOT DEATH WOBBLE
 

I just bought a 2001 cherokee sport and when i put it in 4 wheel drive and turn the wheels shake its really weird its like there rubbing but there not

Welcome to CF!

You'd be better off posting this in Cherokee Tech rather than Grand Cherokee Tech, but I believe your XJ has a 231 t/case which only has one 4wd option? If that's the case, it's only Part Time 4wd which shouldn't be used on dry pavement. In this case the front axle is trying to turn at the same rate as the rear but can't because of your turn, resulting in binding which causes the front wheels to hop or skip.