Box Chevy GM B-Body 700R4 Driveline and Axles

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!

Need a little help Identifying GM Body Styles 1964-1972? Click Here!

Learn how to assemble a Gotta Show transmission cooler line kit for common GM transmissions. Jeff shares some helpful tips on measuring and cutting the braided stainless steel hose for an easier installation.

With the coil-overs attached, it is now time to make the Chevelle rear whole again. Follow along as Jeff installs a 9" third member and spline axles with a few tips on axle lengths and bolt patterns.

Jeff preps the rear end housing to secure the brake lines and shows how to fasten bolt-on brake line tabs on the lower trailing arm bracket. Follow along as he applies Wilwood Dynalite Calipers to his 1967 Chevelle.