There could be a possibility that the mounts may have changed your driveline angle,....procure an inclination meter, measure the degree/angle of the oilpan lip, find a parallel centerline of the transmission to measure from, as well as the rear pinion centerline, you'd like to see the engine/transmission, and the rear pinion exhibiting the same/parallel angles with each other, and the driveshaft deflected at an opposite angle of 2 degrees approx,...

I'll post a pic tonight

Mike