when accelerating from a stop light or at all from a dead stop the whole rear end feels really jumpy. hoping all over the place it feels like. it has a 6inch super lift if that makes any difference. i was thinking pinion angle. the rear end was just installed by the owner before i got it. the prior rear end was blown out.

 

Be careful that will pop one fast. U may need some traction bars and some good shocks

 

you probably need some type of ladder bars to help keep the pinion angle stable under acceleration... do you have anything like that

 

I Had The Same Problem But I Learned My Lesson A Lil too Late But I Got Some Traction Bars and my problem was eliminated oh yeah also check the Pi Angle.

 

cal tracs, they're the best out there plus customer service is great

 

i had the same problem with my old z71 after i installed the lift. i installed 6 degree pinion shims and corrected the problem.

 

Could be from the lift blocks if it has them.