Well, we've disassembled, cleaned, painted and installed new seals. I was hoping to be able to adjust the lash between the pinion and ring gears out since the bearings all appear to be in good shape. Unfortunately, it does not seem to be the case. The gears or the bearings have just enough slop in them that when I adjust the lash to zero, the whloe thing locks up pretty tight.
I will post pictures this week of how the diff looks with new paint, along with seal numbers for anyone looking to find replacement parts for a similar rear diff/axle.
The next question: Where can new gears and bearing sets be found for these? I've waded through Rick's ringpinion.com, but can't seem to get past all the available positraction setups.