What trucks have an 8 speed transmission?

General Motors has announced that its 2015 Chevrolet and GMC SUVs and pickup trucks will come standard with an 8-speed automatic transmission. More specifically, we’re talking about the Chevrolet Silverado, GMC Sierra, and GMC Yukon Denali/Yukon XL Denali models equipped with the 6.2L EcoTec3 V8 engine.

What is RPO M5U?

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 all-wheel-drive vehicles with a longitudinal powertrain orientation.

Who makes GM 10-speed transmission?

Ford
This transmission is part of a joint-venture between Ford Motor Company and General Motors to design and engineer two transmissions, a longitudinal 10-speed transmission and a transverse 9-speed trans-axle.

How bad is the GM 8 speed transmission?

Although a wide range, the intermittent and unpredictable transmission issue was a cause for concern for many buyers of these vehicles. In some cases, this shudder is severe enough to cause hard shifting and violent jerking between shifts.

Is the GM 8 speed transmission good?

Having eight speeds allows the transmission to stay in the “sweet spot” of the RPM power band and also gives 5% better gas mileage than the earlier 6-speed transmissions. There’s probably a 15-20% improvement between the 8-speed transmissions and their 4-speed ancestors.

Who Makes 8 speed transmission?

ZF Friedrichshafen
Chrysler Group LLC initially received the 8HP 8-speed automatic transmissions from the ZF plant in Saarbrücken, Germany….ZF 8HP transmission.