Performance Transmission Builders

Performance Diesel Transmission Builders

Custom Built Transmissions & Parts

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

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

SHOP

Custom-Built Transmissions

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.

SHOP

RAM & GM Transmission Specialists

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

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 RAM and GM diesel pickup trucks.

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!

RAM 2500 RAM 3500 Transmission Specialists

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 been in the industry for 22 year with over 16 years of experience and over 1800 transmissions built.

BLOG

Who we Service

Not only do we build superior transmissions, but we are pros at installing them. Our transmissions are installed in our shop located in Medina, OH which is a suburb 25 minutes south of Cleveland. If you are unable to bring your truck to us, we have the full capability to ship the transmission to you. We are are able to ship anywhere in the contiguous United States excluding Hawaii, California, New Mexico, and Washington.

RedLine Transmissions services transmissions for Dodge RAM Cummins 2500 and 3500 including 47RH, 47RE, 48RE, 68RFE and Chevy Duramax Allison 1000/2000. We ship to Alabama, Arizona, Arkansas, Colorado, Connecticut, Delaware, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Ohio, Oregon, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, West Virginia, Wisconsin and Wyoming.

Tech Talk

Helpful information, advise and knowledge for the experts about automatic diesel transmissions and performance upgrades. If is has horsepower or you want to add more horsepower, this is the place for you.

2018 RAM 2500
68RFE Transmission - "The 550"

Solid Transmission Build!

"Have had a RedLine Transmission in my truck for 1,200 miles. Transmission is very solid and you can feel the transmission holding on to the gears longer while in use. Another big plus is that they had my truck in and out in five days. This is great because my truck is a daily driver and tow rig. 100% recommend this company. Can't wait to tow the fifth wheel this summer.

- Tim B.

2002 Dodge Ram 2000
47RE Transmission - "The 650"

Built & Shipped!

I purchased a built 47RE Transmission for my Ram pickup and it has been driving beautifully so far. Amazing customer service, great product and a pleasure to work with. Definitely recommend!

- Deagan O.

2016 Ram 2500
68RFE Transmission - "The 700"

Highly Recommended

"Had by 2016 68RFE rebuilt at RedLine. Nothing but good things to say. They are priced right. It's been 8 months and 10,000 miles and it is running super strong with no issues. Highly recommended!

- Aris A.