700R4, Automatic 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.

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

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!

A real-world guide to 4L60 transmission specs, strength, and swap tips.

Exlpoded View of the Bert 1300 Late Model Racing Transmission

Product guru Jeff K. takes us along as he updates the suspension on his 1946 Ford Sedan Delivery with a set of fresh Mustang II coilovers following an unfortunate incident with a pothole.

There are a lot of choices when it comes to automatic shifters, and we’ll help unpack all the options and features in our automatic shifter buyer’s guide

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

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