Studebaker Hot Rod Differential Fluid

Learn what gear oils do for your differential and how to choose the best gear lubricant for your application's needs

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.

Dive into some of the history and unique differences between Ford and Chevy spindles for solid front axles and what will perform best on your hot rod.

This or that: stripped down for speed or low and slow in a slick custom?

That flathead engine pictured on our street rod catalog cover is just one little piece of a pretty mean little Model T hot rod. Check it out.

Doug Siemen's Model T is a cool little hot rod. It's even better when you learn that it was built from scratch for a great cause. Check it out!

Learn about the functionality of key parts in a hot rod air conditioning system for install or diagnosing issues. We cover the condenser, compressor and more.

Tim talks about the process of upgrading the factory hubs on his 1929 Roadster project with new manufacture units courtesy of Speedway Motors.

Learn the difference between DOT 3 and DOT 4, or DOT 5 and DOT 5.1. Every type of brake fluid has a specific boiling point and water absorbing quality.

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.