hey guys I want to find out the gears and everything I can about my rear end. now on the passengers side in the front I found the code C 0506Cl on the axel. now on the back side of the car near the cover I found numbers exactly like this but upside down. 1 2 3 4 5 6 7 8 9 0 above that it says c n I or inc. but also upside down. the final thing I found was G M 6 7 now idk what any of this means. I just want to rebuild my rear end into a posi. I really am stuck. and I have a 70 Camaro base model made in L.A. if that helps.