Installing a TREMEC TR-3550 in a ’76 F-100

You can tell it’s a truck transmission by the long, tall shifter and its forward position. Bulky to shift with goofy gear ratios, it’s time to upgrade to something a bit more current.   Installing a TREMEC TR-3550 in a ’76 F-100 BY DON LINDFORS –  PHOTOGRAPHY BY THE AUTHOR When we think of Classic Truck Performance the first thing…