[patty442]

Greg, even though you, years ago grouped me with resident experts, I might have something maybe, maybe not that can help you along. Kopec said give you a hand. In about 1969 Sam Feinstein, SCCA A production national Champion in 1973 was upset with the cost of rebuilding his original Cobra differentials as he tore them up racing. His engineers developed an adapter bracket and set up to install a Corvette C2-3 1965 to 1972 or three complete rear differential into the stock factory pick up points of CSX3009 his car at the time. Repairs and parts for the Corvette rear were a fraction of the original Cobra parts. The Corvette rear was finally modified by Tom's differential and required only routine maintainence with no breakage after that. That rear was in his car in the Atlanta runoff's in 1973, where he was awarded the National Championship after the race winning Owens Corning Corvette was disqualified do to an illegal carb spacer. I was there. I have the adapter , hardware, and differential. The jig to create the adapter on the bench was made from CSX3140 where the entire rear frame was gutted from the car. If you need photos tell me. Bob