Tom's Rear Ends, is that guy still in business? I had him setup my 12 bolt posi in
my 67 Camaro back in the late 70s. The guy is real good, he even deburred my
ring and pinion before assembling. After seeing his work and hearing him explan
how he tries to maximize the strength, I now always deburr my ring and pinions.

Anthony, I lost his business card years ago. If you find him, let me know.