Fred - I have 68 3spd's in both my 57 and 58, bolted right in [except for the output spline difference], never heard there was a different trans between 55 and 68
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
