Sport Mod Transmissions

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

"My parents asked me if it was something I truly wanted to do, because once you get bit by that racing bug, there is no going back."

Explore dirt stock car racing’s key terms, classes, rules, parts, and tips for success in this ultimate guide for new competitors.

Exlpoded View of the Bert 1300 Late Model Racing Transmission

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

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

Follow Tim as he swaps tail housings and covers on a T-5 transmission

Check out these tips on T-5 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!