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Click on image for the lowdown. 
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Mod | | | Forums66 Topics128,081 Posts1,055,959 Members48,430 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | My earlier post disappeared - I hope it does not show up after I post this.
As posted above, GMC first used the Hydra-Matic in a non-military truck in a 1952 Step Van.
The H-M was available in GMC light trucks in 1953.
The H-M was first available in Chevrolet light trucks in 1954.
The Hydra-Matic was used in some military trucks before 1954.
Trivia Question: what was the largest number of “gears” available in any H-M truck (hint : a GMC)?
I bet that no one here has ever seen one. | | |
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