International Off Road Axles

Quick change rears have been around since the 1940s and while many are familiar with them, to others they’re a mystery we’ll help explain

When it comes to a traditional style build on an early hot rod it just has to be rolling on a solid front axle of some sort. In this buyer's guide we take you through I-beam and round tube solid axles, spindle choices, radius rod needs, and more.

In this Tech Tip, John responds to a customer request for our thoughts on an axle kit for his project.

How to Identify Your Rear Axle

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

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.

Click to learn about split wishbone, hairpin radius rod, and four bar suspensions. Learn the history and difference between these solid axle suspension designs.

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

It may feel like a daunting task attempting to determine the best leaf spring for your traditional hot rod straight axle build, but our buyer's guide will surely help.

Learn how to lower a hot rod by modifying the axles and some history behind early hop ups. This project features a Ford axle with wishbones for a Model A.