John,
That is a very tough question to answer. If you have the original Hydra-Matic transmission (with enclosed driveshaft in a 1/2 ton truck), that engine/transmission combination had a starter that was only used for 1.5 years (1954-1955-1st series) and it was 6 volt. With manual transmission trucks that have 12v 235 engines, the flywheel teeth were different from the 6-volt 235s (and 216s) and just about any 12v starter from 1955-1962 (at least) would work.
Do you have a Hydra-Matic transmission (in 1954, it would have an enclosed driveshaft if it was a 3100 1/2 ton model).
Tim
