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Most of the V8/Powerglide transmissions came with the 1.76 gear set. One notable exception was the export version of the transmission, which offered only the 1.82 ratio and was used by Holden in Australia behind their Australian built 6-cylinder and V8 engines. Holden vehicles fitted with Chevrolet V8 engines used the 1.76 ratio gear-set.
[34] [35] It was an early type of automobile air conditioner [36] and is not used in modern cars relying on refrigerative systems to cool the interior. To cool the air it used latent heat (in other words, cooling by water evaporation). [37] Water inside the device evaporates and in the process transfers heat from the surrounding air.
The rear pump was an unregulated gear pump driven from the transmission output shaft, which meant it was capable of pressurizing the transmission if the vehicle was in motion. This feature made it possible to push-start a vehicle with a dead battery if the vehicle could be accelerated to at least 15–20 mph (24–32 km/h).
Automatic transmission fluids using lower quality base oil oxidized more easily than fluids using higher quality base oils. [20] Transmission manufacturers now use smaller, remote mounted, breather vents specially designed to keep out water, but allow a small amount of air movement through the breather as necessary. [21]
The 8L 90 is the first 8-speed automatic transmission built by General Motors. It was debuting in 2014 and is designed for use in longitudinal engine applications either attached to the front-located engine [ 3 ] with a standard bell housing or in the rear of the car adjacent to the differential (as in the Corvette).
A Hydra-Matic 4L80 transmission at the Ypsilanti Automotive Heritage Museum. The 4L80-E (RPO MT1) is rated to handle engines with up to 440 ft·lbf (597 N·m) of torque. [2] The 4L80-E is rated to a maximum GVWR of 18,000 lb, depending on the axle and vehicle. [3]
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One-way bearing combining sprags and bearing rollers in one race Sprags jam when driven and slide when in reverse. A sprag clutch is a one-way freewheel clutch.It resembles a roller bearing but, instead of cylindrical rollers, non-revolving asymmetric figure-eight shaped sprags, or other elements allowing single direction rotation, are used.