Sure it wasn't a Buick Twin Turbine? Only had forward and reverse
from the planetary set, though, with high and low slip turbines
clutched in. Had to be driven off foot to the floor and out of slow
slip fast to keep it from burning up tranny juce, they were famous
for smoking the fluid. I shudder to think of the fuel milage....
Lotta strange trannys out there up to the 70s. Hydramatics's four
speed is the one everyone knows (1939 to 1960 or 1961) since everyone
used it more or less until the Hydramatic plant burned down and there
weren't any for a while in the mid 50's. Ford, Chevy, and Buick made
their own two-speeds, and Ford and Chrysler then went ahead and built
a big one for their V8s and quit using Hydramatics after the fire.
Big bastards -- took 12 qts of oil on a fluid change, something like
16 on a rebuild, and the last models had two fluid clutches (low and
high slip) -- putting the gear shift into "s" switched the input to
the high slip clutch. No over-running clutches, all clutch packs,
and a cone type clutch for low/reverse that was almost impossible to
get adjusted correctly. Easy to tell in a car, as Reverse was to the
right of Low -- with a sloppy linkage, too!
1200 lbs for the cast iron case version, I think, probably 750 for
the aluminum one.
Peter
On Dec 18, 2008, at 10:32 PM, relng...@aol.com wrote:
..I used to mow for an old guy who had a 1941 Cadillac. It had
some sort of
funky
transmission. It was an "automatic" with only two gears. But, you
had to
lift up
on the accelerator to get it to shift - no clutch...
You are describing the Chrysler lift-and-wait transmission. GM
automatics
were Hydra-Matic, even in them days.
RLE
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