Transmission Builds

Heavy-Duty Transmission Builds You Can Depend On

When your truck needs more than a repair, a custom transmission build provides the strength and reliability required for heavy-duty performance. We build transmissions designed to handle towing, hauling, and demanding work conditions.

Our technicians specialize in high-quality transmission builds that improve durability, performance, and long-term reliability.

Custom Transmission Builds for Work Trucks

Whether you rely on your truck for daily work or heavy hauling, your transmission must perform under pressure. Our transmission builds are designed to deliver dependable power and smooth shifting.

We carefully inspect every component and replace worn or damaged parts to ensure your transmission performs like new — or better.

Our builds are ideal for:

  • Work trucks

  • Diesel pickups

  • Fleet vehicles

  • Heavy towing trucks

  • Commercial trucks

What’s Included in a Transmission Build

Our transmission builds go beyond basic repairs. Every transmission is rebuilt with precision and attention to detail.

Services include:

  • Complete transmission teardown

  • Inspection of internal components

  • Replacement of worn parts

  • New seals and gaskets

  • Upgraded components when needed

  • Torque converter inspection

  • Reassembly and testing

We make sure every transmission is built for reliability and long service life.

Signs You May Need a Transmission Build

If your transmission is showing serious problems, a build may be the best long-term solution.

Common warning signs include:

  • Slipping gears

  • Hard shifting

  • Delayed engagement

  • Grinding noises

  • Transmission overheating

  • Loss of power

  • Transmission failure

If you’re experiencing any of these issues, our technicians can diagnose the problem and recommend the best solution.

Built for Strength and Reliability

We understand that downtime costs money. That’s why we focus on building transmissions that last.

Our goal is to deliver:

✔ Stronger performance
✔ Improved reliability
✔ Longer transmission life
✔ Smooth shifting
✔ Dependable power

Why Choose Us for Transmission Builds

  • Experienced diesel mechanics

  • Quality parts and components

  • Honest recommendations

  • Fast turnaround times

  • Reliable workmanship

We take pride in building transmissions that keep trucks working.

About Black Diamond Diesel

We came from the heavy duty dealership world and expanded into heavy equipment and construction vehicles before opening the shop in February 2019 . Since opening we have expanded into the light duty world as well. With over 30yrs combined experience in the diesel industry.
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Experienced Diesel Mechanics

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Honest Pricing

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Fast Turnaround

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Fleet Specialists

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Emergency Repairs

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Testimonials

What Our Customers Say

4.9

Based on 150+ Google Reviews

Awesome set of guys, very informative and descriptive when handling my companies truck. Definitely and highly recommend this place

Derrick Wimbley Jr.

While traveling from California to Alaska our 6 liter diesel quit. They fixed the bad injector and we finished the trip. They did it quickly and resonably.
Donald Crimbchin

Very personable staff, and quality/thorough work. I highly recommend.
- Adriane Dixon

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