StreetMonster Dodge 68RFE Transmission & Torque Converter

In-stock transmissions usually ship the next business day.

Custom builds or out-of-stock units typically ship within 4–6 weeks.

Need it sooner? Call us — we can often make special arrangements.

We offer the most comprehensive coverage in the industry:

• RoadReady: up to 6 Years (3 Year Manufacture, optional 2 or 3 Years from Extend)
• StockMonster: up to 4 Years (1 Year Manufacture, optional 2 or 3 Years from Extend)
• StreetMonster: up to 5 Years (2 Year Manufacture, optional 2 or 3 Years from Extend)
• SportMonster: 6 Years (3 Year Manufacture, 3 Years from Extend included)
• TrackMonster: 1 Year (1 Year Manufacture, Extend not available)

Extend warranties are included on all Transmission Purchases read more HERE.

No — we offer a $364 Flat-Rate One-Way Shipping to any Address.

If you find a better rate, you're welcome to arrange your own shipping.

Our 68RFE transmissions are built to handle significantly more power than stock — each tier is designed for a different level of performance:

• StreetMonster: Supports up to 100 HP over stock. Great for tuned daily drivers with bolt-on upgrades.
• SportMonster: Handles up to 600 HP. Designed for heavy towing, lifted setups, and mild boost builds.
• TrackMonster: Built for 700+ HP with billet internals and racing-grade clutch materials — ready for sled pulling or drag racing.

All units are dyno-tested and engineered for long-term durability and consistent performance.

All of our 68RFE builds include an upgraded heavy-duty torque converter, with features depending on the build level:

• StreetMonster: Heavy-Duty single-clutch design for improved durability over stock.
• SportMonster: Dual Friction design with a stamped forged cover — stronger than stock but not billet.
• TrackMonster: Triple-disc billet cover converter for maximum strength, lockup performance, and resistance to flex under extreme loads.

These converter upgrades provide improved lockup, reduced heat, and greater torque capacity compared to the factory unit — essential for towing, performance, and high-horsepower applications.

Yes — all critical electronics and sensors are either replaced or fully remanufactured during our build process:

• New or tested solenoid pack
• Updated internal wiring harness

This ensures precise shifting, consistent pressure control, and full communication with your vehicle’s ECM/TCM.

Yes — proper tuning is essential for the 68RFE to perform correctly and avoid premature wear or failure.

• Your vehicle’s TCM/ECM must be flashed after installation.
• Custom line pressure and shift point adjustments are required to match the upgraded build.
• Refer to our Installation Manual for full tuning instructions.

⚠Without proper tuning, you may experience harsh shifts, flare, or limp mode. We strongly recommend professional calibration.

The 68RFE transmission is most commonly found in Dodge Ram and Ram heavy-duty diesel trucks equipped with the 6.7L Cummins engine.

• Ram 2500: Common 68RFE application from 2007.5 and newer
• Ram 3500: Many diesel applications use the 68RFE, though some later trucks may use an Aisin instead
• Dodge 68RFE / Ram 68RFE transmission: Most often associated with 6.7 Cummins-powered HD pickups

If you are shopping for a 68RFE transmission for sale, always confirm fitment by VIN, tag, or build sheet before ordering.

Like many diesel transmissions, the stock 68RFE has several known weak points, especially in towing and tuned applications.

• Torque converter clutch slip and excessive heat
• Clutch wear under heavy towing or added horsepower
• Hydraulic pressure loss and inconsistent apply timing
• Premature hard-part wear in higher-stress setups

Our upgraded 68RFE builds are designed to address these common issues with stronger internal components, converter improvements, and proven hydraulic upgrades.

The correct 68RFE transmission fluid is ATF+4.

• Always use the proper ATF+4 fluid in your 68RFE transmission
• Using the wrong fluid can affect shift quality, clutch apply, and long-term durability
• Fresh fluid is especially important after a transmission replacement or performance build install

If you are installing a new 68RFE transmission, we also recommend replacing both filters and verifying fluid level at operating temperature.

68RFE transmission fluid capacity can vary depending on the torque converter, pan depth, and cooling system setup.

• Most complete installs typically fall in the rough range of 13 to 17 quarts total
• Deep pans and larger cooler systems can increase capacity
• Final fluid level should always be checked warm using the correct procedure

Proper fluid level is critical for any 68RFE transmission for sale or fresh install, especially on towing and performance trucks.

Yes — our upgraded 68RFE transmissions are built with towing in mind, especially for Ram 2500 and Ram 3500 diesel trucks.

• Improved torque converter lockup helps reduce slip and heat
• Upgraded internals support heavy trailer loads and repeated stress
• Better clutch holding capacity improves durability under load

If you tow frequently, haul heavy, or run larger tires, an upgraded Ram 68RFE transmission is a much better choice than a stock replacement.

An upgraded 68RFE transmission is designed to solve the common weak points found in the factory unit.

• Stronger torque converter options
• Improved clutch capacity and holding power
• Better hydraulic control and valve body strategy
• More durability for towing, tuned trucks, and performance use

That means better performance, less slip, improved heat control, and greater confidence compared to a stock Dodge 68RFE.

The best 68RFE upgrades depend on how your truck is used, but there are several proven improvements that make a big difference.

• Upgraded 68RFE torque converter
• Valve body and hydraulic improvements
• Additional clutch capacity
• Hard-part upgrades for higher horsepower and heavy towing
• Cooling upgrades like a deep pan or external transmission cooler

These 68RFE upgrades help improve durability, reduce heat, and make the transmission better suited for towing, tuning, and hard use.

Yes — our complete 68RFE transmission packages include a matched upgraded torque converter.

• The 68RFE torque converter is a critical part of towing performance and durability
• Upgraded converter designs help improve lockup, reduce heat, and handle added diesel torque
• Higher-tier builds use stronger converter options for more demanding applications

If you are shopping for a 68RFE transmission for sale, a matched converter package helps ensure the unit is set up correctly from the start.

Yes — replacing the filters is an important part of any 68RFE transmission installation.

• The 68RFE uses both a pan filter and a spin-on filter
• Fresh filters help protect the new clutches, solenoids, and hydraulic circuits
• This should always be done along with fresh ATF+4 fluid

Skipping filter service on a new 68RFE can shorten transmission life and negatively affect performance.

Yes — flushing or replacing the cooler and lines is strongly recommended whenever a 68RFE transmission is replaced.

• Old debris can contaminate the fresh transmission
• Restricted cooler flow can raise operating temperature
• Clean cooler flow is especially important for towing and heavy-use Ram 68RFE transmission applications

One of the fastest ways to damage a new 68RFE transmission for sale is by installing it into a contaminated cooling system.

For many trucks, yes — especially if the 68RFE is used for towing, hauling, lifted applications, or frequent heavy driving.

• A deep pan can increase fluid capacity
• More fluid helps manage heat over long drives and grades
• An external cooler can help keep 68RFE transmission fluid temperatures under control

Cooling upgrades are some of the smartest 68RFE upgrades you can make for long-term reliability.

Yes — but the right tier matters.

• StreetMonster: Great for mild tuning and daily driving
• SportMonster: Better for heavier towing, bigger tires, and stronger power levels
• TrackMonster: Best for aggressive tuning, racing, and high-horsepower builds

If your truck is tuned, a stock-style 68RFE transmission may not offer enough holding power or converter control. Matching the build to the power level is key.

Yes — a Quick Learn procedure is highly recommended after installing a 68RFE transmission.

• It helps the transmission establish proper clutch volume indexes
• It can improve shift quality and adaptive function
• It helps protect the new transmission during the initial break-in period

For best results, pair the Quick Learn with the correct fluid fill, filter replacement, and recommended drive cycle.

The right 68RFE transmission depends on your truck’s power level, towing needs, tire size, and how you actually use it.

• RoadReady: Best for stock replacement and normal daily driving
• StreetMonster: Best for mild upgrades, tuned daily drivers, and light towing
• SportMonster: Best for frequent towing, heavier loads, and stronger street performance
• TrackMonster: Best for high horsepower, racing, and extreme-duty use

If you are comparing 68RFE transmissions for sale, choosing based on actual use is the best way to get the right build the first time.

No, fluid must be purchased separately. We offer special discounted prices and even cheaper shipping options when you bundle with our fluid at checkout.

Returning your core is simple. Once you are ready to return your core, you can initiate the return process in one of two ways:

• Fill out our Core Return Form (available online) using the button below.
• Or call our Customer Service Team at 800-708-0087 to schedule your return freight pickup.

Please Note:

• The customer is responsible for the return shipping cost.
• A flat-rate fee of $364 will be deducted from your core refund to cover return freight and handling. If Round Trip Shipping is not Prepaid Upfront.
• The core must be the same model and not cracked or damaged beyond rebuild.

Our goal is to make this process as seamless as possible — if you have questions about your core return, just give us a call.