I have a 10 bolt out of a 83 El camino for sale. Its nothing special. Non posi, car was a V6/AT. I had someone ask me if it was an 8.5 or a 7.5. I couldnt recall the answer to that since its been a while. I need my mind refreshed. Can anyone help me answer this or should I come back with numbers off the tube? The only thing I knew is that the GN and Monte SS cars have the 8.5. But is it all cars have the 8.5 and some get the posi units. Its been a while since I have looked at these cars so closely.
Chris.
Chris.