Shelby 2004R Transmission Parts

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

Darrian explains the process of Shelby/Arning drop changes and how that affects your car.

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

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.

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.

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

Leave all the head scratching to us, as we have your manual transmission bellhousing solution for your LS swap all figured out already

Exlpoded View of the Bert 1300 Late Model Racing Transmission

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

This new steel bellhousing from Speedway Motors is made for everyone who wants to run three pedals without spending a fortune or relying on a crusty original.