i have what i believe is a 57 chevy three speed manual trans. i would like to sell it, but first i want to make sure it is what i think it is. the casting numbers on the side are as follows- main case: gm 13 3845122 d 187, tailshaft: gm 28 0237 8707196, sidecover: 3845044gm. any help would be greatly appreciated.
thanks in advance