I have a Auburn pro series differential for GM 10 bolt 7.5" 28 spline rear end for sale. Part # 542046. It is brand new still in box. I have decided to go with a 12 bolt, so do not need this part. I paid $426.99 from Jegs for it, but would take $350 OBO.
If you would be interested email me at 95compta4@core.com.
Thanks