looking for a m12 trans for my 70 gs im pulling the 4 speed out and putting it back to stock 3 speed and info or leads would be great thanks chris
Chris, If your GS was an original big block car (455) and there was no option listed for trans, it would have been built with the HD Muncie 3-speed (on the floor). This trans was the "MC1" close ratio with a 2:42 first gear. Do a search for "MC1 muncie 3-speed" and you should find information on the net about it. Don
