Check out how to tell the differences between the many GM automatic overdrive transmissions that are available in the ... The second unit, also with a 27-spline yoke, is for 4L60E and 4L65E.

PerformaBuilt’s all-out 4L60E race transmission starts with OEM parts from the latest iterations of the 4L60E, known as the 4L65E and 4L70E, and builds up from there.

Our '96 Impala makes just under 500, so to avoid scattering our overdrive we upgraded our 4L60E to 4L65E specs. Here's how we did it. -Car Craft Magazine ...