Parts include a McLeod performance rebuild ... abundant in the junkyard and therefore cheaper. A local transmission shop will rebuild a 4L60E for around $900 to $1,200 and a 4L80E for $1,300 ...

A few months back we detailed the buildup and testing of our street 4L60E trans with help from our trans man Jimmy Galante and parts from ... at bolting in the transmission and a new starter ...

In 2001, the 4L60E became the 4L65E when GM upgraded some key internal parts that were failing behind the increasingly powerful Gen III powerplant. The improved transmission utilized a stronger ...

and especially with the 4L60E. In Part 2, we’ll detail adapting this transmission into a 1964 El Camino and controlling it with a TCI EZ-TCU controller. This story is not a step-by-step rebuild.

To fix this issue, owners will need to replace both the 3-4 clutch pack and the 3-4 piston, which is essentially a complete transmission rebuild. While rebuild kits are available online for ...