Fordson Farm Power major VS Industrial Power Major

No PTO
No Pulley
Large drum brakes at the end of the axles ILO small drums on the bull shaft.
No 3pl
Optional trailer vacuum brakes
A large drawbar hook.
Non adjustable pressed steel rear wheels. (some export ag tractors had these wheels, eg New Zealand)

Engine speed on truck engines was higher than those on tractors. This was achieved by adjustment to the throtle control on the manifold on early engines and the injector pump on later engines.

I have compared the part numbers of manifolds and injector pumps of truck/tractor for engines made after March 1957 and they appear to be the same except for the carburetors.

One thing I did miss was that the industrial tractor has only one brake peddle.

Early tractor engines hade smaller injector pump bores.