master parts manual here, near the bottom > "55-57 1/2T (except hvy dty & 4 spd)", 1&5/16 dia bore, should be the same as 59, p/n 3707059

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