Out of a 2000 SS Camaro. Three channel, welded on relocator brackets, and sway bar is attached 3.42 gear no backing plates. Works Fine 75.00 pics below.
Contact Mike (586)362-9609
It was a manual and I have no idea about the 28 spline axels...sorry if you are really interested make offer, kinda just want it out of my garage...taking up needed room! Let me know.