700R4, Drive Shaft

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 the installation process of a drive shaft loop kit in a 1967 Chevelle. NHRA requires a driveshaft loop if you're going to run slicks on the drag strip!

In this tech article, we show you how to measure the working angles on your drive shaft to ensure long life out of your U-joints.