You can use your original side cover on the later transmission to match your existing linkage. However, you need to replace the 1-R shift fork with the one from the 55 trans as the gear is wider. 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
