Can someone help me please!? I have a 1963 C 10 with a straight six 250 from a 1970 Nova. The tranny is a three on the tree. The casing looks nothing like the images of a Muncie, Saganaw or a Borg Warner. There are only 5 bolts on the side cover. The code on the housing is GM 3743368. The only lead I've had from this code would be a Corvette transmission from the early 60's. There is what appears to be a 1 62 before the numbers listed above. If anyone has any idea what trans. this might be please shed some light. Confused in Carloina.