I see occasional posts on here regarding overdrive transmissions. Until now, I didn't know that Chevy ever offered overdrive. Was it an option, or did it come on only certain models. Was it a GM product, or did they buy them from Borg Warner? I have overdrive on my 1950 Studebaker, and love it. Can overdrive be added to our old transmissions, or is it a special tranny? I'm hoping that you guys can educate me regarding this. Thanks

Mike Burns
1940 Chev 1/2 ton
1953 Chev 1/2 ton
1950 Studebaker Starlight Coupe
1947 Indian Chief
1943 Indian 741