Hi my camaro on heavy take offs will pop when taking off and will do it when it shifts into 2nd as well but no other gear. new u-joints and seals on both extension housing and diff. it also has new torque arm bushing so it not the torque arm.

 

I was goin thur the samething back 11' In my GTA I was looking at the rear also then looked at my driveshaft. By time I got 2 the trans dat where the problem was dat tran mounting bolt had rattled loose...it was a 1 buck fix...