What Year Did Chevy Start Using 6 Speed Transmission

The 4L80-E and similar 4L85-E was a series of automatic transmissions from General Motors.

What year did chevy start using 6 speed transmission. In 1970 GM made the inline 6 the base engine with the Chevy IINova with either a 230 or 250 ci engine Applications. Yeah its the 06s. Cast iron case and extension housing with 4-bolt side cover.

Units from 1940-54 have enclosed driveline otherwise known as a torque tube. I later found out it was sourced from Aisin. Has non-synchro 1st and a barrel type 23 assembly.

Advantages of the new 6L90 transmission include improved fuel economy performance and handling. A year later it was announced that the 2018 Chevrolet Tahoe with the Performance Package will also use the transmission. GM Hydra-Matic 10-Speed 10LXX Automatic Transmission Applications Transmission.

Information is provided for General Motors 3 speed 4 speed 5 speed and 6 speeds manual transmissions. It goes on to say that while the vehicles are in use if the driver accelerates or decelerates the vehicle pauses then. Those from 1955-68 may have electric overdrive.

It was an evolution of the Turbo-Hydramatic 400 first produced in October 1963GM 4L80-E transmission. 5 Oct 15 2009. According to the suit each of the named vehicles has one of two eight-speed automatic transmissions made by GM the GM 8L90 or the GM 8L45.

So far this transmisison has appeared only in conjunction with high-horsepower engines such as the 420. The wheelbase held firm at 130 inches. The ST10s production in GM vehicles was from 1974 to 1988.