The 55-67 transmissions were the same with minor differences. The gear ratios were the same except for Corvettes & some Pontiacs. Trucks & cars used different side covers and the lower mount holes were threaded on Trucks. Early cars & trucks had a longer tail shaft than the later version. The later cars also used a rear mount.
Fred

Last edited by rfs56trk; 07/17/2008 3:51 PM.

1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine