8-3/4 Noise After Rebuild..What's Normal??

From what i here you saying your rear is NOT set up right. Shims on the pinion gear, side adjustments on the ring gear. You say it whines under acceleration. It's riding wrong on the gears. One side or the other. You say it whines when under deceleration. Riding wrong on the gears. One side or the other. You say it's quiet in between go and whoa. It's between front and back of gears. If the back lash is not set properly then the pinion gear and ring does not have a good pattern on the face of the gear. Those guys maybe racers but with what kind of cars. Oh while i'm talking, the yoke nut should be torqued to about 250 ft lbs. I'll bet their wrench don't go that high. Mine don't. Keep us posted.