Okay, knowing what I know now I would have chosen to keep my 3.73's in instead of swapping them out for 4.10's. Can I install the 3.73's back in that I took out (with 30,000 miles on them) with no ill effects?

 

i would give it a shot. just be accurate when shimming it back in since you have an eaton now and not a g80.

 

If you still have the original shim and can get the backlash and pattern really close to where they were they should be quiet. As long as you get them real close you will be okay, otherwise you will likely get noise.