About Us

Welcome to RedLine Transmissions

Dodge/RAM trucks lined up in front of RedLine Diesel Power Transmissions

GET TO KNOW US

RedLine Transmissions are your Cummins and Duramax specialists! Our custom-built automatic transmissions are all manufactured in-house. Our experience delivers more power to the ground, guaranteed!

WHAT WE OFFER

Redline Transmissions is Northeast Ohio’s source for high-quality transmissions, performance, and repair. 

We offer:
• Complete diesel truck performance and repair, Cummins and Duramax—engine
• Automatic diesel transmissions for Dodge, Hellcat/SRT, Chevy/GM, and Ford
• Fuel Injection Components
• Air intakes & gauges 
• Hot Rod diesel pickup truck builds from mild to wild and beyond!

OUR REPUTATION

Our reputation is known for our problem-solving skills specializing in the powertrain department. In-house transmission building is just one service that has separated RedLine Transmissions from its competitors. We build transmissions that fit your application, regardless of your power level. As a result, we can build a transmission that will hold and prove to be more efficient. Many transmission re-builders make this claim, but our experience will get the job done correctly.

WHAT WE WORK ON

Our team is experienced and experts in automatic transmissions for Dodge/Ram Cummins, GMC/Chevy Duramax and Ford Powerstroke engines. We are also skilled in performance and repair for Dodge and Chevy trucks.

WHAT WE BUILD

RedLine Transmissions builds a full line of upgrades for light-duty diesel trucks, including HD transmissions, billet-covered torque converters with custom stall speeds, custom turbochargers, and more. Performance upgrades designed and built for reliability with increased driveability available for Dodge, GM, and Ford diesel pickup trucks.

WHAT WE USE

Our custom transmission packages feature billet components and the most substantial gear trains available. All light-duty types of diesel trucks are covered. Ask us about our performance upgrades!

WHY CHOOSE US

A simple philosophy is at the core of our business. Your truck will receive the same quality install or repair we would do on our vehicles. Diesel trucks are our passion. It is in our blood. It is what we were born to do. We are proud to say we have over 14 years of experience and over 1400 transmissions built. If you would like to learn more about our history, click here.