Trans output shaft

[svm99]

Ford used a 16 spine out put shaft in the '42-'50 open drive 3 speed pick up transmissions, '50 Mercury transmission and the '51 & '52 pickup 3 speeds. Note: the '42-'50 and the '51 & '52 pickup shafts are not interchangeable as the helical splines are different though the shafts are very similar in appearance.

Later transmissions may also use a 16 spline out put, of those I am not knowledgeable.

Paul J.