Chevy R20 700R4 Transmission Parts

This resource contains a transmission pan shape ID chart and other tips to help with identifying GM transmissions.

The 700R4 is a great choice when it's time to upgrade your classic car or truck with an overdrive transmission. Here's what you need to know about GM's famous 4-speed automatic.

Follow along as Jeff installs an early 700R4 transmission for the big block in his 1967 Chevelle. See how this unit is upgraded and converted to a later 30 spline style.

We show you how to keep that old GM transmission when swapping in an LS engine. Our LS swap adapter kits make it easy!

Learn how Zach replaces a transmission and breakaway converter in his 55 Chevy, with some helpful tips along the way.

Learn the basic function of a torque converter along with alternative ways to cool your Chevy transmission.

Learn about the G Force crossmember and how the symmetrical product design makes for a smooth installation on Jeff's 1967 Chevelle.

Jeff tackles the installation of the Lokar Muscle Car Shifter inside of a factory stick-shift floor pan section. This product won a "Best Interior Product" Award at the SEMA show in 2016.

This article highlights the finishing touches of the front suspension in Jeff's Chevelle. Learn some tips on how to install the steering arms, center link and tie rod assembly.

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.