Note: Expect a project advisor to reach out to you after your order to confirm your VIN and fitment details.
Table of Contents:
1. Our Commitment to Engineer Excellence
2. 30-Day 100% Risk-Free Guarantee
3. No Time Limit Free Core Returns
4. Do You Need Fast & Easy Financing?
5. Built Chrysler 68RFE Transmission w/ Torque Converter Upgrade Build Specifications
6. 2 Year/Unlimited Mileage No-Fault Warranty System
7. Popular Transmission Information Resources
1. Our Commitment to Engineer Excellence
At Next Gen Drivetrain, building a transmission is about more than simply making it survive. The goal is to engineer a drivetrain that delivers the kind of crisp, responsive shifting enthusiasts want while maintaining the durability and reliability required for everyday use, towing, performance driving, and high-horsepower applications. Every transmission is approached with the philosophy that customers should not have to choose between great shift quality and long-term dependability.
That philosophy starts with understanding how a transmission actually fails. Instead of simply replacing worn components with factory-style parts, Next Gen Drivetrain studies the weaknesses of the original design and looks for opportunities to improve them. Valve body operation, hydraulic pressure, clutch capacity, sealing, lubrication, heat management, and internal component strength can all play an important role in how a transmission performs and how long it lasts.
Shift quality is especially important. A transmission that shifts too softly can generate excessive clutch slip and heat, while a transmission that shifts unnecessarily harshly can make a vehicle unpleasant to drive and place additional stress on drivetrain components. Next Gen Drivetrain works to achieve the right balance: fast, positive, controlled shifts that feel performance-oriented without sacrificing drivability.
That balance comes from carefully engineered combinations of hydraulic modifications, upgraded components, precision machining, improved clutch capacity, and application-specific calibration strategies. The objective is not simply to make shifts harder. It is to improve the transmission’s ability to apply clutches quickly and consistently so power is transferred efficiently from the engine to the wheels.
Reliability is engineered into the transmission at the same time. Whenever possible, known weak points are addressed before they become problems. Depending on the transmission platform and application, this may include upgraded clutch packs, improved valve body components, stronger internal hardware, better sealing solutions, revised hydraulic circuits, or other proprietary modifications developed specifically to correct common failure points.
Manufacturing quality is equally important. A high-performance transmission is only as good as the precision used to assemble it. Clearances, tolerances, clutch setup, hydraulic operation, and component condition all have to work together. Attention to these details helps produce consistent performance from one transmission to the next.
The result is the type of transmission Next Gen Drivetrain strives to build every day: one that shifts quickly and confidently when the throttle is down, remains smooth and predictable during normal driving, and is engineered to handle demanding conditions for the long haul.
For performance enthusiasts, truck owners, racers, and anyone who depends on their vehicle, that combination matters. Horsepower means very little if the transmission cannot reliably transfer it.
Next Gen Drivetrain’s mission is simple: engineer and manufacture transmissions that deliver exceptional shift quality without compromising reliability. By combining real-world experience, precision manufacturing, thoughtful engineering, and solutions for known factory weaknesses, Next Gen Drivetrain builds transmissions designed not only to perform better—but to stay performing better.
2. 30-Day 100% Risk-Free Guarantee
If you are not 100% satisfied with your Next Gen Drivetrain transmission, you have 30 days from the date of delivery to return it to us for a full refund, even if it’s been used. We truly believe we’ve engineered the best transmission on the market for the Chrysler 68RFE transmission, and we want to prove it. Talk about confidence!
3. No Time Limit Free Core Returns
Life happens! We know sometimes it takes a while to get your core back to us. As of August 1st, 2026, we now offer no-time-limit core refunds. You can return your core after ANY amount of time! We even cover the return shipping; truly hassle-free every step of the way.
4. Do You Need Fast & Easy Financing?
Next Gen Drivetrain® proudly offers fast, easy and affordable instant financing. You can finance your order straight from your computer or phone in as little as 5 minutes through companies like Affirm, Katapult & Shop Pay Installments. Some options offer as low as 0% APR! To learn how, check out our EZ Financing guide below:
> Next Gen Drivetrain™ Fast & Easy Financing Guide
5. Chrysler 68RFE Transmission w/ Torque Converter Upgrade Build Specifications
The Next Gen Drivetrain Built Chrysler 68RFE Transmission w/ Billet Torque Converter offers the most comprehensive build sheet on the market, compare us to anyone! Below you'll find an itemization of all inclusions associated with this custom upgraded transmission assembly.
5.1 EconoMax® Build Specifications
EconoMax® Series transmissions are designed to rival the cost of an OEM replacement, but far more reliable, featuring all essentials necessary to withstand the test of time for factory power or lightly modified applications. These transmissions generally feature upgraded pumps, valve bodies, torque converters and friction materials whilst also consisting of a complete and total remanufacturing in excess of all OEM specifications.
EconoMax® Series transmissions shift smoothly, operate at comfortably low temperatures and are designed to optimize for longevity, low cost of lifetime maintenance and direct OEM compatibility. Further, they're highly affordable given their robust credentials.
You can find EconoMax® Series transmissions in everything from farm trucks, to construction vehicles to forever cars for your local family of 5. Their blend of concise shifts, low cost of maintenance and tremendous reliability make them an attractive option for the majority of people looking for an entry level transmission with top shelf reliability.
If that isn’t attractive enough, these transmissions feature a 2 year, unlimited mile warranty. We design these units to ensure that clients looking for an affordable and reliable alternative to OEM parts have access to a tremendous option. If you’re looking to take advantage of Next Gen Drivetrain technology at an accessible price-point, the EconoMax® is an incredible choice.
- Billet Torque Converter Cover
- Billet Torque Converter Stator
- Billet Impeller Hub
- Billet Lockup Apply Piston
- New Roller Bearings
- New Updated Bushing
- Twin-Disk Lockup Clutch
- New Updated Sprag Assembly
- Laser Cut Steel Valve Body Separator Plate
- Overdrive Accumulator Delete Kit
- 4 O-Ringed Accumulator Bypass Plugs
- (1) Billet Steel Accumulator Girdle w/ Upgraded Hardware
- (1) Billet Steel Low/Reverse Switch Valve
- Billet Pressure Regulator Valve w/ Milled Relief Journal
- Billet Steel TCC Regulator Valve w/ Recalibration Spring
- (1) TCC Accumulator Piston w/ Sleeve
- Laser Cut Steel Oil Pump Separator Plate
- Billet Steel Pump Gear Set
- Billet TCC Limit Valve Sleeve & Bypass Kit
- OEM Solenoid Pack
- OEM Input Speed Sensor
- OEM Output Speed Sensor
- OEM Pressure Transducer
- OEM Gasket & Seal Kit
- OEM Filter Kit
- Cast Aluminum Deep Pan w/ Upgraded Hardware
- OEM Roller Bearing Set
- Bronze Bushing Set
- OEM Pump Cover Replacement
- Remanufactured OEM Sprag Assembly
- Carbon Graphite Low/Reverse Clutch Assembly
- Carbon Graphite 4C Clutch Assembly
- Carbon Graphite 2C Clutch Assembly
- Carbon Graphite Underdrive Clutch Assembly
- Carbon Graphite Overdrive Clutch Assembly
- Carbon Graphite Reverse Clutch Assembly
- Billet 2C Apply Piston
- Billet 4C Snap Ring Retainer
- Billet Output End Play Shim
- Upgraded Laser-Cut 4C Steel Set
- Upgraded Laser-Cut 2C Steel Set
- Upgraded Laser-Cut Reverse Steel Set
- Welded Output Planetary Assembly
5.2 Xtreme Tow® Build Specifications
Xtreme Tow® Series transmissions are a unique series of transmissions developed by Next Gen Drivetrain®, specifically for our truck and SUV customers seeking the ultimate work-horse. These transmissions generally feature upgraded pumps, valve bodies, torque converters, drums and friction materials whilst also consisting of a complete and total remanufacturing in excess of all OEM specifications.
Xtreme Tow® Series transmissions shift crisp but modestly, operate at comfortably low temperatures and are designed to optimize for longevity, low cost of lifetime maintenance and direct OEM compatibility while also capacitating the added power of potential modifications that are common in the working-vehicle community.
You can find Xtreme Tow® Series transmissions in everything from tow-trucks, to over-achieving daily drivers to modestly upgraded family trucks. Its low cost of maintenance and tremendous durability make them an attractive option for the majority of people looking for a mid level transmission with top shelf reliability.
If that isn’t attractive enough, these transmissions feature a 2 year, unlimited mile warranty. If you’re looking for a maxed-out reliability build, short of unnecessary racing parts that are not relevant to your application, the Xtreme Tow® Series transmission is the pristine option for you.
- Billet Torque Converter Cover
- Billet Torque Converter Stator
- Billet Impeller Hub
- Billet Lockup Apply Piston
- New Roller Bearings
- New Updated Bushing
- Twin-Disk Lockup Clutch
- New Updated Sprag Assembly
- Laser Cut Steel Valve Body Separator Plate
- Billet Valve Body Assembly
- Billet Overdrive Anchor Plate w/ Drum-Saver Sleeve
- Oversized Overdrive Clutch Pack
- Billet Oil Pump Assembly
- Overdrive Accumulator Delete Kit
- 4 O-Ringed Accumulator Bypass Plugs
- (1) Billet Steel Accumulator Girdle w/ Upgraded Hardware
- (1) Billet Steel Low/Reverse Switch Valve
- Billet Pressure Regulator Valve w/ Milled Relief Journal
- Billet Steel TCC Regulator Valve w/ Recalibration Spring
- (1) TCC Accumulator Piston w/ Sleeve
- Laser Cut Steel Oil Pump Separator Plate
- Billet Steel Pump Gear Set
- Billet TCC Limit Valve Sleeve & Bypass Kit
- OEM Solenoid Pack
- OEM Input Speed Sensor
- OEM Output Speed Sensor
- OEM Pressure Transducer
- OEM Gasket & Seal Kit
- OEM Filter Kit
- Cast Aluminum Deep Pan w/ Upgraded Hardware
- OEM Roller Bearing Set
- Bronze Bushing Set
- OEM Pump Cover Replacement
- Billet Low/Reverse Sprag Assembly
- Carbon Graphite Low/Reverse Clutch Assembly
- Carbon Graphite 4C Clutch Assembly
- Carbon Graphite 2C Clutch Assembly
- Carbon Graphite Underdrive Clutch Assembly
- Carbon Graphite Overdrive Clutch Assembly w/ Added Clutches
- Carbon Graphite Reverse Clutch Assembly
- Billet 2C Apply Piston
- Billet 4C Snap Ring Retainer
- Billet Output End Play Shim
- Upgraded Laser-Cut 4C Steel Set
- Upgraded Laser-Cut 2C Steel Set
- Upgraded Laser-Cut Reverse Steel Set
- Welded Output Planetary Assembly
5.3 PowerTech® Build Specifications
Have added power? Enjoy putting it to the floor, but want a reliable daily-driver too? For decades, you’ve had to choose. With the advent of the Next Gen Drivetrain® PowerTech® Series transmissions, this is easily achievable with a 100% bolt-in package. Next Gen Drivetrain® PowerTech® Series products are designed to combine the reliability and longevity of EconoMax® and Xtreme Tow® series products, with the play-factor of Project Carbon® series products.
These transmissions will feature robustly upgraded pumps, valve bodies, torque converters and friction materials whilst also consisting of a complete and total remanufacturing in excess of all OEM specifications. PowerTech® Series transmissions shift quickly and crisply, operate at comfortably low temperatures and are designed to optimize for longevity, performance, power delivery and direct OEM compatibility.
You can find PowerTech® Series transmissions in everything from tow-trucks, to weekend street builds, to hot-rods to daily driven vehicles who simply have power. Their blend of instant shifts, tight tolerances and tremendous reliability make them an attractive option for the demographic looking for an middle-upper level transmission with top shelf reliability.
If that isn’t attractive enough, these transmissions feature a 2 year, unlimited mile warranty. If you’re looking to take advantage of Next Gen Drivetrain®’s most coveted technology in a daily-drivable package, the PowerTech® Series transmission is a beautiful and highly rewarding option.
- Billet Torque Converter Cover
- Billet Torque Converter Stator
- Billet Impeller Hub
- Billet Lockup Apply Piston
- New Roller Bearings
- New Updated Bushing
- Billet Triple-Disk Lockup Clutch
- New Updated Sprag Assembly
- Laser Cut Steel Valve Body Separator Plate
- Billet Valve Body Assembly
- Billet Overdrive Anchor Plate w/ Drum-Saver Sleeve
- Oversized Overdrive Clutch Pack
- Billet Oil Pump Assembly
- Overdrive Accumulator Delete Kit
- 4 O-Ringed Accumulator Bypass Plugs
- (1) Billet Steel Accumulator Girdle w/ Upgraded Hardware
- (1) Billet Steel Low/Reverse Switch Valve
- Billet Pressure Regulator Valve w/ Milled Relief Journal
- Billet Steel TCC Regulator Valve w/ Recalibration Spring
- (1) TCC Accumulator Piston w/ Sleeve
- Laser Cut Steel Oil Pump Separator Plate
- Billet Steel Pump Gear Set
- Billet TCC Limit Valve Sleeve & Bypass Kit
- OEM Solenoid Pack
- OEM Input Speed Sensor
- OEM Output Speed Sensor
- OEM Pressure Transducer
- OEM Gasket & Seal Kit
- OEM Filter Kit
- Cast Aluminum Deep Pan w/ Upgraded Hardware
- OEM Roller Bearing Set
- Bronze Bushing Set
- OEM Pump Cover Replacement
- Billet Input Shaft Assembly
- Billet Overdrive Hub Assembly
- Billet Overdrive Drum Assembly
- Billet Low/Reverse Sprag Assembly
- Carbon Graphite Low/Reverse Clutch Assembly
- Carbon Graphite 4C Clutch Assembly w/ Added Clutches
- Carbon Graphite 2C Clutch Assembly w/ Added Clutches
- Carbon Graphite Underdrive Clutch Assembly
- Carbon Graphite Overdrive Clutch Assembly w/ Added Clutches
- Carbon Graphite Reverse Clutch Assembly
- Billet 2C Apply Piston
- Billet 4C Snap Ring Retainer
- Billet Output End Play Shim
- Upgraded Laser-Cut 4C Steel Set w/ Added Steels
- Upgraded Laser-Cut 2C Steel Set w/ Added Steels
- Upgraded Laser-Cut Reverse Steel Set
- Welded Output Planetary Assembly
5.3 Project Carbon® Build Specifications
Unlike anything else on the market, rare and desired Project Carbon® Series transmissions are the Monarch of our brand and the Gold Standard of upgraded transmissions industry-wide. These hand-built, re-engineered transmissions are as comfortable on a road trip as they are on a race-track. We use Project Carbon® Series transmissions to incorporate all of our available technologies into one product, showing the zenith of our brand’s engineering and design capabilities. These sparkling examples of American ingenuity are proudly both engineered and hand-assembled in-house right here in the USA. Compare us to any so-called “competitor” and you will see that truly nothing compares.
These transmissions feature maximally upgraded pumps, valve bodies, torque converters, billet hard parts wherever possible and friction materials whilst also consisting of a complete and total remanufacturing in excess of all OEM specifications. We proudly design our own valve body parts, billet upgrades, separator plates and more. Best of all, we do not sell our inventions/upgrades to other large transmission companies, ensuring that these transmissions are the most proprietary transmissions on the market. There is truly nothing like a Next Gen Drivetrain Project Carbon® Series transmission.
As stated before, Project Carbon® Series transmissions shine both on the road, and on the track. These products shine on the road for their crisp yet tame shifts, low operating temperatures and industry-leading longevity. In fact, their longevity is so impressive that these products are a favorite amongst many hotshotting/transport companies use these transmissions to travel 100,000+ miles a year, loaded with the heaviest trailer the vehicle can legally carry. If longevity, reliability and usability are your priority, Project Carbon® Series transmissions are the perfect fit.
Additionally, these products are unrivaled in high performance/added-power applications. When it comes to performance, less time spent shifting is more time spent accelerating. Through this, we have engineered Project Carbon® products to minimize shift time as quickly as possible, without causing any aggression whatsoever. In fact, many Project Carbon® products with torque converters are known to shift nearly as fast as Dual-Clutch transmissions, saving as sometimes more than 100 milliseconds per shift over so-called “competitors” selling stock or near-stock transmissions and pretending they’re upgraded.
Their blend of instant shifts, blissful drivability and industry-leading reliability make them the most desired option for a top-shelf upgraded transmission. If that isn’t attractive enough, these transmissions feature a 2 year, unlimited mile front-to-back warranty and an incredible lifetime, unlimited mile valve body warranty. We don’t just believe in our products reliability, we guarantee it. If you’re looking for the climax of automotive transmission technology, Next Gen Drivetrain Project Carbon® Series transmissions are unrivaled, elite and truly extraordinary.
- Billet Torque Converter Cover
- Billet Torque Converter Stator
- Billet Impeller Hub
- Billet Lockup Apply Piston
- New Roller Bearings
- New Updated Bushing
- Billet Triple-Disk Lockup Clutch
- New Updated Sprag Assembly
- Laser Cut Steel Valve Body Separator Plate
- Billet Valve Body Assembly
- Billet Overdrive Anchor Plate w/ Drum-Saver Sleeve
- Oversized Overdrive Clutch Pack
- Billet Oil Pump Assembly
- Overdrive Accumulator Delete Kit
- 4 O-Ringed Accumulator Bypass Plugs
- (1) Billet Steel Accumulator Girdle w/ Upgraded Hardware
- (1) Billet Steel Low/Reverse Switch Valve
- Billet Pressure Regulator Valve w/ Milled Relief Journal
- Billet Steel TCC Regulator Valve w/ Recalibration Spring
- (1) TCC Accumulator Piston w/ Sleeve
- Laser Cut Steel Oil Pump Separator Plate
- Billet Steel Pump Gear Set
- Billet TCC Limit Valve Sleeve & Bypass Kit
- OEM Solenoid Pack
- OEM Input Speed Sensor
- OEM Output Speed Sensor
- OEM Pressure Transducer
- OEM Gasket & Seal Kit
- OEM Filter Kit
- Cast Aluminum Deep Pan w/ Upgraded Hardware
- OEM Roller Bearing Set
- Bronze Bushing Set
- OEM Pump Cover Replacement
- Billet Maraging Steel Input Shaft Assembly
- Billet Input Clutch Housing
- Billet Overdrive Hub Assembly
- Billet Overdrive Drum Assembly
- Billet Input Clutch Hub Assembly
- Billet Low/Reverse Sprag Assembly
- Carbon Graphite Low/Reverse Clutch Assembly
- Carbon Graphite 4C Clutch Assembly w/ Added Clutches
- Carbon Graphite 2C Clutch Assembly w/ Added Clutches
- Carbon Graphite Underdrive Clutch Assembly
- Carbon Graphite Overdrive Clutch Assembly w/ Added Clutches
- Carbon Graphite Reverse Clutch Assembly
- Billet 2C Apply Piston
- Billet Center Support Assembly
- Billet 4C Snap Ring Retainer
- Billet Output End Play Shim
- Upgraded Laser-Cut 4C Steel Set w/ Added Steels
- Upgraded Laser-Cut 2C Steel Set w/ Added Steels
- Upgraded Laser-Cut Reverse Steel Set
- Welded Output Planetary Assembly
6. 2 Year/Unlimited Mileage No-Fault Warranty System
As of August 1st, 2026, Next Gen Drivetrain now uses a no-fault warranty system. We believe that confidence in the product does not end when the transmission leaves the shop. Every transmission is backed by a 2-year, unlimited mileage warranty, giving customers the freedom to drive, work, tow, and enjoy their vehicles without constantly worrying about mileage limits or complicated coverage restrictions.
Even more importantly, Next Gen Drivetrain stands behind one of the most critical components in the transmission—the valve body—with a lifetime warranty on the valve body component itself. Because the valve body plays such an important role in hydraulic control and shift quality, this additional protection reflects Next Gen Drivetrain’s commitment to engineering components designed for long-term performance.
What truly separates Next Gen Drivetrain, however, is its no-fault warranty system. Traditional transmission warranties can sometimes turn into an argument over who or what caused the problem. Customers may be forced to prove that a failure was caused by a defective component, while warranty providers search for reasons to deny coverage. Next Gen Drivetrain takes a different approach.
The no-fault warranty philosophy is designed to make the process straightforward. Instead of immediately focusing on blame, the priority is helping the customer resolve the problem and get their vehicle back on the road. That approach provides something every transmission customer wants: peace of mind.
When you purchase a Next Gen Drivetrain transmission, you are not simply purchasing upgraded components and performance-focused engineering. You are also receiving the support of a company willing to stand behind what it builds. With a 2-year unlimited mileage warranty, lifetime valve body coverage, and a customer-focused no-fault warranty system, Next Gen Drivetrain gives customers confidence long after installation.
7. Popular Transmission Information Resources
- Top 5 Benefits of an Upgraded or Built Transmission
- Calculating Torque Multiplication Factor, Why is it So Important?
- Top 5 Ways to Extend the Life of a Factory Transmission
