1950 F1gearbox

T

Tony Burdett

Member
Just stripped my F1. 3 speed gearbox prior to fitting it back into the chassis following blasting and painting the members and found a couple of badly chipped teeth on the 1st/ reverse gear it has 29 teeth, does anyone know what years and models have the same gearbox so that I can broaden my search for a serviceable gear?
 
The 68-7100-B and the 01A-7100 both have 29 helical teeth and 16 helical splines. The 1950 F1 with the light duty 3-speed likely came with the 01A-7100 type but both may work. 1951 was the change year for the diamond shaped teeth. Any Ford top or side load 3-speed from 1941 thru 1950 would have likely had that 01A part number. There was also a 21C-7100 number for a while. I've seen that in My 1949 thru early 1951 Mercury parts books but they all look pretty much the same.

Mac VP's transmission book lists what all works with what in the light duty 3-speed transmissions.
 
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