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

Hey guys............

We took in an 8-3/4 for a rebuild a few weeks ago...actually a month ago....it was whining something fierce on deceleration....we've brought up the topic before on this forum.

Instead of just adjusting it, I had them put in a new ring & pinion set and bearings........I have it back now, after a month..... I think these guys had some trouble they're not telling me about, but it's over the dam now....

At any rate, there is still noticeable driveline noise now, but it's equally split on acceleration and deceleration, with just a slight quiet spot between.....it's still too noisy in my opinion, although it is definitely much quieter now than it was.

I'm also noticing gear noises when I corner sharply, and I'm wondering exactly what, under normal circumstances, I should be hearing....???

What's normal for this scenario? What's the best way to "break-in" these gears.........will they actually quiet down a bit more after a break in?..........will a better lube help the noise level, or help a break-in? Will figure 8's help when the gears are new?

I just haven't had enough experience with rear-ends to know what's right and wrong by "listening"..............

If some pro's could respond, I'd really appreciate it. :thumblef: