GMC C25 4L60E Driveline and Axles

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

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

How to Identify Your Rear Axle

Our hot rod expert takes you through his ford I beam axle setup. Follow as he sets up the front end on his split wishbone front suspension Model A.

We will show you the differences among traditional I-beam and tube axles and suspension designs used on hot rods; the differences between cross and traditional steering, measuring for springs, what spindles to choose, and much more.

In this Tech Tip, John answers a customer question about finding the right axle length for his 1931 Model A.

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

Speedway Motors employee Steve L. takes a few minutes to talk about the various straight axle and radius rod options available at Speedway Motors.

Today on our 410 sprint car, the guys are assembling the front axle. The process can be a bit messy, but the finished product is so worth it!

Learn how to assemble the front axle of a sprint car. See what tools are needed for assembly including an angle finder gauge tool and king pin reamer.