Gears & Axles - Rebuilt 10 bolt whine??

I bought my car a few months ago with a fresh rebuilt rearend. Only like 2500 miles on it. When i bought it i thought it just might be new gears need to be worn in but apparently not. Fluid is full, so i dont really know what the hell is going on.

It is a constant dull whine when i accelerate and decelearate and is pretty loud and annoying!

I did notice that one of the directional tires on the rear is backwards! lol could that be part of the problem? :bang:

Just wondering if its something i need to be really concerned about?

I am going to be installing a VIG 3600 at the end of the month. :D I dont wanna have my car sitting for months while i save for a new rear. :bang:

could be the tires, could be the wheel bearings, could be the rear end wasnt set up right, could be high nickel content gears like richmonds, could be the carrier or pinion gears. Check the easier stuff first.

IMHO whining is almost always a bad ring pinion setup especially if it responds to acell and decell.