The GM overdrive transmission swap has been covered ad nauseam, and to be fair, it's an incredibly straightforward swap for anyone who's even done the most basic of hot rodding—that's why we love it.

The 4L60E and 4L80E are two of General Motors’ most discussed automatic transmissions, and the choice between them shapes how a truck, SUV, or LS swap behaves on the street and under heavy load. Both ...

When the guys at Trick Flow Specialties sent us out the door last summer with a fresh 350 under hood of our 1978 Malibu, they seemed to be taking bets on how long the transmission would last. "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 ...