That housing casting number says it's a 55-57 Passenger/Corvette tranny. This is an excerpt from this page. 3707195 is a 55-57 Extension housing for all 3 speeds except OD & Heavy Duty. Part #4.317 in the same link above.
Last edited by klhansen; 01/19/20222:40 AM. Reason: added tailshaft info
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
