Chevy R20 700R4 Driveline and Axles

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!

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.

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.

The Speedway Motors Tech Team created a quick how-to on squaring the front axle of your open wheel race car.

Jeff chooses Redline Radial Tires and black powder-coated steel wheels for his 1967 Chevelle. See how he installs the tires with some helpful tips along the way.

Learn how to assemble a rear axle assembly as we put together ours for the 410 Sprint Car Build. Our team of builders continues to make progress on the car!

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.

Follow along as Jeff chooses redline radial tires and steel wheels to get the perfect fit for his Chevelle. Learn how redlines are added to a set of Real Rodder mags for a consistent 60's theme.