Dodge/RAM Transmissions

Dodge/RAM Transmissions
Choose Transmission
47RH 1994-1995 47RE 1997-2002 48RE 2003-2007 68RFE 2007.5-2024

High-Performance Street

Built for rapid acceleration
and massive torque.

CORE UPGRADES

Valve Body:
Performance-Spec High Line Pressure

Clutch Strategy:
Maximum Surface Area "Big Stack" OD

Internal Hardware:
Billet Input Shaft Included

WARRANTY

Parts | 36 Months, 150k
Labor | 12 Months, 24k
Choose Transmission
68RFE 2007.5-2024

Extreme Use

Engineered for absolute maximum
horsepower applications.

CORE UPGRADES

Valve Body:
ProTech68 or Full Race Manual Valve Body

Clutch Strategy:
Extreme-Duty Sintered Friction Packs

Internal Hardware:
Full Billet Package (Input/Inter/Output)

WARRANTY

Parts | 36 Months, 150k
Labor | 12 Months, 24k

The BD Diesel
Engineering Advantage

Advanced Hydraulic Management

To eliminate clutch slippage and pressure wrap, we've completely redesigned the hydraulic circuits. Our valve bodies are recalibrated to deliver the consistent, high-line pressure required to clamp heavy-duty clutch packs firmly, even under the extreme torque of a modified Cummins engine.

Thermal Protection & Cooling Efficiency

Heat is the #1 killer of the 68RFE and AS69RC. We address factory cooling bottlenecks by increasing fluid flow and capacity. By pairing our builds with deep-sump aluminum pans and high-flow filters, we ensure lower operating temperatures during sustained heavy towing.

Precision-Machined Hard Parts

From billet input shafts to reinforced sun gears, we replace the high-failure "soft" parts found in OEM units. Our TrackMaster and TorqueMaster tiers utilize high-strength alloys and increased clutch surface areas to handle the violent shifts and massive torque loads of high-horsepower applications.

Transmission Selection Guide

  1. Confirm Your Platform & Year Range

    Ensure fitment for 68RFE (2007.5-2024), AS69RC (2013-2024), or the classic 47RE/48RE series. Selecting the correct year is critical for electronic compatibility and input shaft spline counts.

  2. Match the Build Tier to Your Horsepower & Use

    Don't over-build or under-spec. A RoadMaster is optimized for daily reliability and stock power, while our TrackMaster is engineered with billet internals for 800+ HP competition use.

  3. Factor in Towing & GCWR Requirements

    Heat is the primary cause of transmission failure. If you are frequently at max towing capacity, prioritize a tier with increased clutch surface area and a heavy-duty deep sump oil pan for improved fluid cooling and filtration.

  4. Coordinate with Your Tuning Strategy

    High-performance diesel tuning requires a hardware-to-software match. Ensure your tuner's shift and line pressure strategy aligns with the valve body specifications of your chosen BD build.

  5. Protect Your Investment: The Cooling System

    Never install a performance transmission behind a contaminated cooler. We recommend a professional hot flush or cooler replacement to ensure zero debris enters your new unit during the initial break-in period.

Transmission Lookup Table

Use your truck's model year and engine as a quick guide to identify your transmission family. For Heavy-Duty (HD) or Chassis-Cab models, always verify by the door sticker codes, build sheet, or the identification tag on the transmission case.

Transmission Engine Model Years Notes
47RH 5.9L Cummins (Diesel) 1994-1995 Hydraulic-controlled 4-speed.
47RE 5.9L Cummins (Diesel) 1996-2002 Early electronic-controlled 4-speed.
48RE 5.9L H.O. Cummins (Diesel) 2003-2007 Found in 2500/3500 series trucks.
68RFE 6.7L Cummins (Diesel) 2007.5-Present Standard 6-speed for non-Chassis-Cab 2500/3500.
66RE 5.7L / 6.4L HEMI (Gas) 2012-2018 Primarily used in 2500/3500 gas models.
AS69RC 6.7L Cummins (Diesel) 2013-Present Aisin HD found in Chassis-Cab 3500/4500/5500.

How do I choose the right BD transmission for my Dodge/Ram?

Click your application (transmission family + year range). Pick a tier based on how you use the truck and your horsepower goal. The page lays out both application buttons and power/use ranges to guide that decision.

What transmissions does this page cover?

We offer a wide variety of Dodge/RAM transmissions including 48RE (2003–2007), 68RFE (2007.5–2024), AS69RC (2013–2018), 66RFE (2012–2018), 47RE (1996–2002), and 47RH (1994–1995). Availability varies by tier.

What’s the difference between each build tier?

BD positions them by use and power target (depending on application): RoadMaster 350–500hp, TowMaster 400–600hp, TorqueMaster 500–700+hp, TrackMaster 800+hp.

What upgrades are included for stock or lightly modified trucks?

The RoadMaster is built for daily driving and work use with upgrades that support reliability and life. Depending on application, this can include a heavy-duty governor pressure solenoid, upgraded pressure transducer kit, and a deep sump oil pan for performance and cooling.

What upgrades are emphasized for towing and heavy-duty use?

The TowMaster is built for tough conditions, with upgrades focused on extra weight and heat management. Depending on application, this includes a heavy-duty transmission pan and other towing-focused improvements listed on the product.

I’m not sure which Dodge/RAM transmission I have. What should I do?

Use your model year and confirm the transmission family (build sheet/VIN lookup, door sticker codes, or trans tag), then choose the matching application button on the page.

Can I talk to a real person at BD before I buy to confirm I’m choosing correctly?

Yes. Call 800-887-5030 to speak with our sales team.