In 1953, GMC trucks first had a Hydra-Matic transmission available.
In 1954, Chevrolet trucks (at least up to a 1-ton truck) had a 4-speed Hydra-Matic (not PowerGlide) automatic transmission available.
It would be nice to to hear from someone who has original documentation on production numbers. I have never seen any good information posted. 200 Hydra-Matic trucks in 1954 seems a low number (although, they are uncommon).
Tim
