welcome to the shop Joe - if you've got yerself a 55 2nd series [no V8 in a 55 1st series] then the next investment you should make is a shop manual, as well as the owners manual [glove box book] and the assembly manual

the standard rear gears in any 1/2T 55.2 were the 3.90:1 with either the column shift 3 speed or the floor shift 4 speed - with the optional 3 spd over drive trans the rear ratio was 4.11 - that was what ya got up until 58 when they started offering an "economy" ratio, 3.38:1

Bill


Moved over to the Passing Lane

"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 & Rust-a-holics Unanimous parking lot