'The 700-R4 has long been a mainstay in the General's arsenal of late-model automatic overdrive transmissions. In 1993, OBD-II brought electronic controls and the introduction of the 4L60E. At the ...

With their debut in the 1990s, GM's 4L60E and 4L80E transmissions reveal some of their differences –- and similarities –- right in their names. The "4" and "L" respectively refer to the number of ...

While we can't blame you for involuntarily convulsing in laughter after reading that last line, Mike Kurtz of Century Transmission is about to make good on that claim. With GM's recent updates to the ...

The 4L60E is the latest in a long line of durable, high-function GM overdrive automatics that have come our way since the 1960s. The TH350 three-speed automatic had long been a mainstay with Chevy ...