Oh yes , Buick's wretched " DynaSquish " abortion ~ it never actually shifted , it just wasted gas like it was cheap (oops , it was back then) and made the cars bad drivers although the ' Triple Turbine Smooth ! ' B.S. made old Men happy and sold quite a few cars .
I'm betting the Comercial Hydromatics never got the upgrades as that 1 - 2 lurchy shift never wetn away in Commercial trucks unless you flat footed the accelerator .
-Nate
Mark wrote:
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> Yeah, that was the original plant in Livonia. The fire occurred in August of '53, and everybody scrambled for automatics; Cadillacs and Oldsmobiles got Buick's Dynaflow, and Pontiac got saddled with the original Powerglide from Chevrolet. Nine weeks after the fire, the new plant in Willow Run was up and running, so everybody was getting trannys again.
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> Rolls Royce was in a good position; they were building Hydra-Matics on their own under license.
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> 1954 was the last year for the original, efficient Hydra-Matic. For '55, a second fluid coupling was installed, in place of one of the clutch packs, to smooth out that 1-2 shift lurch. Combined with some engine changes (including a displacement increase), Cadillac Series 62s, for instance, went from fuel mileage in the low 20s to the mid-teens. I don't know if the trucks, which used the Hydra-Matic til the mid-'60s, long after the cars switched over to the Turbo Hydramatic 350 or 400, ever got the dual coupling unit or not....
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> Mark
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