I have a 1954 Chevy 3100 with the Hydra-Matic Transmission. Is the GMC 1/2 ton Hydra-Matic the same Transmission? Also, is there an official name for this transmission? I have heard "dual range" but I have 3 ranges. Just trying to track down some manuals to service the transmission.

Thanks

MFW


1950 GMC 100

1954 GMC 470

1954 Chevy 3100 Hydramatic
In the Stovebolt Gallery



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1957 Ford 850 Tractor (video)