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BD Transmissions

BD Transmissions

Shift cleaner.
Run cooler.

CHOOSE APPLICATION →

  • Matched Torque Converters

    Each transmission is designed as a direct-fit solution and can be paired with a matched torque converter and supporting upgrades for reliable, consistent performance.

  • Upgraded Internals

    Featuring reinforced parts, improved clutch materials, and precision-machined components to increase strength, reliability, and long-term durability under heavy load.

  • Deep Sump Transmission Pan

    Increases fluid capacity for improved cooling and lubrication, helping maintain consistent performance and extend transmission life under heavy load conditions.
a better transmission

a better transmission

We do not just rebuild factory weak points—we engineer solutions that last.
  • Corrected OE Weaknesses: Addresses common failure points in stock transmission designs.
  • Stronger Supporting Hardware: Upgraded components improve reliability under real-world stress.
  • Application Specific: Built for diesel trucks that tow, work, and make serious power.
built for torque

built for torque

Built to handle heavy towing, high horsepower, and repeated heat cycles.
  • Billet Internal Components: Higher-strength hard parts resist failure under load.
  • Upgraded Friction Materials: Improved clutch durability for demanding applications.
  • Increased Heat Capacity: Helps control temperature during towing and performance use.
optimized power transfer

optimized power transfer

Engineered to deliver efficient power transfer with improved drivability and reduced slip.
  • Calibrated Valve Body Circuits: Improves shift timing and transmission response.
  • Optimized Clutch Apply Rates: Reduces flare, overlap, and excess heat during shifts.
  • Balanced Hydraulic Control: Ensures consistent pressure across critical transmission functions.

Choose Your Application

Dodge

Dodge Transmissions

BD Diesel Dodge/Ram transmissions are built for popular 1996-2024 diesel truck applications, including the 48RE, 68RFE, and more. Designed for towing, hauling, daily driving, and increased power in Cummins-powered trucks, they deliver stronger holding power, improved heat control, and dependable shifting. As one BD RoadMaster 68RFE customer shared in a 5-star review, “It arrived in 3 days, was packaged well, installed smoothly, and has performed great through the first 2,000+ miles.”
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Ford

Ford Transmissions

BD Diesel Ford transmissions are built for popular 1995-2024 Ford truck applications, including the E4OD, 4R100, 5R110, 6R140, and 10R80. Designed for Power Stroke trucks, plus newer Ford truck builds, they use upgraded components to improve holding power, cooling, and shift consistency for towing, hauling, daily driving, and added power. As one TowMaster Ford 6R140 customer shared in a 5-star review, “Shipping was lightning fast, customer service responded within hours, and I couldn’t be happier with the experience so far.”
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Chevy/GM

Chevy/GM Transmissions

BD Diesel Chevy/GM transmissions are built for popular 2001-2021 truck applications, including Allison 1000 Duramax and 6L80 Chevy/GMC builds. Covering LB7 through L5P Duramax platforms and GM LS gas truck applications, they use upgraded components to improve holding power, cooling, and dependable shifting for towing, hauling, daily driving, and added power.
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Frequently Asked Questions

What makes BD Diesel transmissions different from stock transmissions?
BD Diesel transmissions are engineered to handle increased power, towing demands, and heavy-duty use. Compared to stock units, they feature upgraded internal components, improved clutch capacity, and enhanced durability to reduce failure under load.
Are BD Diesel transmissions good for towing?
Yes. BD Diesel transmissions are designed with towing in mind, offering improved torque handling, better heat management, and stronger internal components to support heavy loads and long hauls.
What vehicles are BD Diesel transmissions available for?
BD Diesel offers transmission solutions for a wide range of popular truck platforms, including Dodge/Ram, Ford, and GM diesel and gas applications. Fitment varies by model year and engine.
Do BD Diesel transmissions come with a torque converter?
Many BD Diesel transmission packages include a matched torque converter that is engineered to work with the transmission for optimal performance, efficiency, and durability.
How much horsepower can a BD Diesel transmission handle?
Horsepower capacity varies by transmission model and build level, but BD Diesel transmissions are designed to handle significantly more power than stock, making them suitable for towing, daily driving, and performance applications.
Are BD Diesel transmissions suitable for daily driving?
Yes. BD Diesel transmissions are built to maintain smooth drivability while improving strength and reliability, making them ideal for both daily driving and demanding work conditions.
What are the benefits of upgrading to a BD Diesel transmission?
Upgrading provides improved reliability, increased torque capacity, better shift quality, and longer transmission life, especially for trucks used in towing, hauling, or modified applications.
Do I need to upgrade other components when installing a BD Diesel transmission?
While not always required, supporting upgrades like transmission coolers, valve body upgrades, or tuning can help maximize performance and longevity.
How do I know which BD Diesel transmission is right for my truck?
Choosing the right transmission depends on your vehicle, usage (towing, daily driving, performance), and power goals. BD Diesel offers multiple options to match different needs.
How long does a BD Diesel transmission last?
With proper installation and maintenance, BD Diesel transmissions are built to provide long service life, often outlasting stock transmissions under the same conditions.