GM 6T30 Six-Speed Automatic – Junior Addition – Part 2
After General Motors and Ford collaborated on the GM 6T70 and Ford 6F50 transmissions, they recognized the need for another transmission to accommodate lighter-duty vehicles.
GM 6T30 Six-Speed Automatic – Junior Addition – Part 1
During development, the GM 6T70 and Ford 6F50 basically fell off the same sheet of paper resulting in a noticeable amount of interchangeability of various components. One key difference between the two models is that GM chose to go with a mechatronic (TEHCM) valve body design, whereas Ford stuck with the traditional external TCM (PCM). Another variable between the GM and Ford transmissions were the dreaded cushion springs that have been tweaked over the years. Both designs accommodate the larger vehicles equipped with higher output engines and both have received continuous changes and upgrades.
