I agree with Evan except that a stock 64 3 speed transmission is the "stubby" version of the SM318. The SM319 Overdrive unit is about 5" longer. A driveshaft modification would be required. Fred
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
