C4 Street Auto Trans Dipsticks

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

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.

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

In this Tech Tip, John answers a customer question about what would be needed to swap some additional power in place of his anemic 233c.i. Ford.

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 importance of maintaining the right pressure in your tires for longer wear, enhanced handling and to get better fuel economy.

Choosing the right suspension products when building your street rod or custom car. A step by step on how to determine which parts are needed for installation, how to calculate the spring rate and other helpful tips along the way.

Use our Brake System diagram to help with your street rod brake system project. We also diagram both single flare and inverted double flare fittings for you.

Our side mirrors with LED turn signals are a quick upgrade you can make to your car to set it apart.

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.