Lonnie, I would recommend that you contact California Performance Transmissions in Huntington Beach, CA. He is the real Art Carr and has been around since the Hydramatic was new. 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