The 4L60E and 4L80E are two of General Motors’ most discussed automatic transmissions, and the choice between them shapes how ...

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 Sonnax and TCI Automotive. But that was only half the battle.

I am building a '49 Chevy panel truck with mostly junkyard parts. What do I have to do to use a 700-R4 trans with a carbureted 350 engine? The trans is new enough that it has a lot of wires going to ...

Cheap(er) gasoline yep, it is a reality and the lower cost is certainly comforting after crude oil prices sat at record highs for many years. New sources for American oil, which exploration began ...

The 4L60E and 4L80E were both developed by GM, and there are many similarities in their designs. However, there are key ...