Chevrolet didn't put the Sagamaw 4-speeds in any TF trucks (55-59), they didn't come out until 1966. The Saganaw that I have in my '56 I believe is 70's vintage.
Mike B
Mike Boteler
1956 Chevy 3100 Resto Rod 1952 Willys M38 Army Jeep 1983 Jeep CJ7 Laredo 1984 Jeep CJ7 +++++ Silver Spring, MD