Modified Transmissions

Leave all the head scratching to us, as we have your manual transmission bellhousing solution for your LS swap all figured out already

Dirt modified racing delivers high-horsepower, adrenaline-fueled action, learn more about them and their racing classes

Small block Chevy V8 or the modern LS V8? Which one comes out on top as the best engine to swap into your ride?

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.

This article demonstrates how to install a complete Winters quick change kit with additional parts including birdcages, brackets, and calipers for a modified race car.

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

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

Learn a few tips on how to properly mount Modified bodies and some products that will help get your race car body fabrication job done!

Devyn Peterson is an Auto Tech in the Speedway Motors Customer Experience center. He's also a racer, starting out in karts when he was just 5 years old. He moved up to a Modified when he was 13 and hasn't looked back!

In order to be competitive and win, it's important to find the right set up that works for you and your car. Here's some general reminders to remember during set up!