need a m12 3 speed

[regalracer1987]

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

[Don McCurry]

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