General Motors' 4L60-E automatic transmission is one of the most popular transmissions ever built. It was initially designed to replace and modernize GM's older Turbo 700R4 — also known as the ...

Back in July, GM Authority brought you exclusive coverage of a transmission downgrade for the 2020 Silverado 1500 High Country 4WD Short Bed, with that particular model mating the 5.3L V8 L84 engine ...

The GMC Sierra 1500 and GMC Canyon are core products in the brand’s pickup truck line, and the GMC Savana soldiers on as its commercial van offering. Now, according to a newly released GM dealer ...

GM has a long history of class-action lawsuits filed over its 8L45 and 8L90 eight-speed automatic transmissions. Customers have complained a lot about the “violent shakes, jerks, and hard shifts” but ...

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 ...