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 ...

General Motors' 4L60-E automatic transmission is one of the most popular transmissions ever built. It was initially designed to replace and modernize GM's older Turbo 700R4 — also known as the ...

Modern GM transmissions can be more than a little tricky with all the wiring and tuning involved, but nobody said it needed to be that way. If only there were a little computer you could slap on your ...

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.

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 ...

Think of the 4L65-E transmission as the Steve Austin of GM's automatic overdrives. It looks like a standard 4L60-E, but beneath the skin, standard parts were replaced with improved components."We can ...