[Njgunslinger]

Well lot of things found off. First of all the driveshaft was too long so it was hitting the back of the rear... Way too many weights on it. - Replaced it with custom made 3.5 Aluminum Driveshaft.
The U-joints were shot of course.
Passenger side header pipe had no clearance and had to be massaged off the chassis.
Driveshaft Loop was too high and the Torque arm was leaning on it so that Loop had to be lowered.
Axle seals were not put in correctly so they were replaced.
Transmission mount was replaced to match the Poly Engine mount.
Lower Control Arms were mounted in the correct holes on the Relocation Brackets that were welded on the Moser Rear.
Brake line mount was just hanging and never mounted on the new Rear so that was mounted correctly.

Drives and feels 100% better.

A few shops in NJ and Pa worked on this car in the past and never seen or realized the problems or caused the problems themselves. Make sure you go to real professionals and not hack shops that call themselves performance shops before you get work done on your car, or you will find that you will have someone else doing the same work over again correctly.