Riley Report Archives - Transmission Digest
General Motors 9T50 Nine Speed FWD: Part Two

In this continuation from Part One, we’ll be discussing the rotating clutches, planetary gear sets and more on the 9T50.

General Motors 9T50 Nine Speed FWD: Part One

The 6T70 / 6F50 and 6T40 / 6F35 transmission families have undergone countless changes since 2007 and are used in a variety of different models of vehicles currently.

Avoid Brand X Parts Twists and Turns

Certain aftermarket serpentine belts can create an electrostatic discharge that can impact electrical components that happen to be too close, such as the TCM. In this particular model truck, the TCM is not too far away from the belt, and that was causing the erratic transmission operation and trouble code.