The Hydra-Matic 8L90 (production code M5U) is a fuel-saving and electronically controlled eight-speed automatic transmission developed and produced by General Motors for use in rear- and rear-biased ...
We first heard rumors that General Motors was developing an all-new eight-speed automatic transmission in-house years ago, and at the North American International Auto Show in January, we learned that ...
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The Biggest Problems With GM's 8-Speed Transmission
For years, automakers were reliant on 6-speed transmissions. However, they began to adopt 8-speed replacements, following pressure from the government to meet new environmental regulations. When the 8 ...
Originally developed for the 2015 Corvette Z06, GM’s Hydra-Matic 8L90 eight-speed auto trickled to the normal 2015 Corvette and the 2015 Cadillac Escalade. Designed to be mated exclusively to the 6.2 ...
GM has announced a new automatic transmission with 8 speeds as a standard feature in 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon Denali/Yukon XL Denali. The new Hydra-Matic 8L90 8-speed is to ...
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