2007.5-2018 Ram 2500 & 3500 Tier One 68RFE Tow-All Transmission

Tier One Tow-All 68RFE Transmission Features:

• Handles heavy and consistent towing better than stock
• Comes standard with upgraded components for better heat and power management
• Complete, drop-in transmission for your 2007.5-2018 Ram 6.7L Cummins
• Includes twin-disc torque converter, deeper transmission pan, and upgraded valve body
• Fixes common 68RFE issues while letting you tow heavier for longer
• Black finish for a great look under your truck
• Valve bodies are both leaked-checked and tested on our valve body dyno prior to install
• All transmissions are thoroughly tested on our in-house transmission dyno
• Comes backed by a 2-year, unlimited mileage limited warranty
• Requires additional core charge and freight shipping
• If you have questions or want a custom 68RFE build, contact Tier One or call 602-399-5484!

Provides extra durability and cooling when towing heavy with your Ram 2500 or 3500

The stock 68RFE helping to power your 2007.5-2018 Ram Cummins handle street driving and light towing just fine, but if you're towing at the edge of your truck's GVWR or using some mild Cummins tuning to help you out, the stock 68RFE gets very unhappy very fast. Tier One's Tow-All 68RFE transmission for 2007.5-2018 Ram 2500 and 3500 trucks is built from the ground up to handle heavy and consistent towing and light performance tuning. This complete Ram transmission features heavier-duty internals than stock, as well as a deeper transmission pan to both hold more fluid and keep the transmission running cooler. While this version of 68RFE doesn't hold as much power as Tier One's other transmissions, it's still a perfect choice for anyone looking to shore up their Cummins towing rig against possible problems down the road or as an uprated stock replacement if you happened to pop your factory transmission while towing or hauling.

Comes with a Twin-Disc Torque Converter, Deep Transmission Pan, High-Pressure Valve Body, Billet 4C Retainer, and new hardware

Tier One builds each of their 68RFE Tow-All transmissions from OEM 68RFE transmission cores that are thoroughly cleaned and inspected for damage or excessive wear before being used in our Tow-All transmission builds. We include a new twin-disc torque converter with every Tow-All transmission build to both improve lockup and spread the load from heavy towing over more surface area within the converter to help prevent failures. The deeper transmission pan holds more fluid than stock and helps keep the running temperatures down when you're towing heavy. Each Tow-All 68RFE transmission comes with a Tier One high pressure valve body that more effectively routes fluid throughout the transmission under high loads than the stock valve body. Tier One also includes a billet 4C spring retainer to help prevent walk-out and premature failures. We throw in a new OEM line sensor and solenoid packs to ensure optimal transmission function. The Tow-All transmissions are topped off with new seals and gaskets before being air-checked for leaks.

Fully Overhauled 68FRE Transmission for Excellent Reliability

During our build of your 68RFE Tow-All transmission, we here at Tier One go over every millimeter of its internal components to guarantee excellent function and reliability. All parts are disassembled and cleaned from our OEM cores to ensure your new 68RFE transmission is free from contaminants and other debris. We carefully inspect your transmission's planetary gear train for damage before fully speccing all bearings and washers for endplay. The original transmission pump is flat-sanded, checked for proper clearances, and vacuum-tested. The valve body is likewise flat-sanded and its solenoids thoroughly inspected for better than OEM function, and we replace the OEM accumulator plate to avoid potential codes and issues down the road. Each transmission is also fitted with a TIG-welded planetary pinions. The performance rebuild kit includes new Borg Warner clutches, seals, gaskets, and sealing rings to replace all the wearable parts of the transmission before it's installed on your Ram 2500 or Ram 3500.

Thorough Testing of the Valve Body and Entire Transmission Before Shipping

We here at Tier One take pride in every built 68RFE transmission we manufacture for the Ram 6.7L Cummins trucks. To make sure that you get a transmission that's as tough as your truck, Tier One puts both the valve bodies and the entire assembled transmission through rigorous testing to ensure you get the reliability you need for heavy towing and hauling applications with your 6.7L Cummins diesel. Before the assembly of the valve body, it goes through flat-sanding vacuum-testing. All valve body solenoids are carefully tested to ensure flawless operation. After assembly of the valve body, it goes through rigorous dyno-testing to ensure proper fluid flow, line pressures, and solenoid operation. After final assembly of the transmission itself, we put it through a complete air-check to find potential leaks before putting the entire transmission on our in-house transmission dyno to ensure proper operation, performance, and power-holding.

Specifications:

• Vehicle fitment: 2007.5-2018 Ram 2500 or 3500 6.7L Cummins
• Transmission Type: Chrysler 68RFE
• Power Rating: near-stock power/towing applications
• Torque Converter: OE-style twin-disc
• Flex Plate: OEM
• Input Shaft: OEM
• Transmission Pan: PPE deep pan with increased capacity
• Valve body: High-Pressure
• Intermediate shaft: OEM
• Clutches: Borg Warner
• Output shaft: OEM
• Geartrain: OEM
• Spring Retainers: billet 4C/OEM
• Pistons: OEM
• Sprag: OEM
• Clutch Hub: OEM

For 2007.5-2018 Ram 6.7L Cummins only: this particular transmission is only for 2007.5-2018 Ram 6.7L Cummins 2500 and 3500 trucks. If you have a 2019-2024 Ram 6.7L Cummins with a 68RFE, please take a look at our 2019-2024 Ram Tow-All Transmission. If you have a Ram 3500, 4500, or 5500 with an Aisin AS69RC transmission, please see our Aisin AS69RC transmissions here.

2007 Ram Model Year Note: this transmission is only meant for 6.7L Cummins trucks built after July 2007. They will not fit early 2007 models with 5.9L Cummins diesels. If you have an early 2007 Ram 2500 or Ram 3500 with a 5.9L Cummins, check out our 48RE Transmission options.

2-Year, Unlimited Mile Warranty: each Tier One built transmission comes backed by a 2-year, unlimited mile warranty. Please see our Warranty Terms and Conditions here.

Optional Upgrades: the following upgrades are optional, but are available if you're looking for even better reliability and power-holding:

• Billet Flex plate: high-strength flexplate made from CNC machined billet steel that's more durable than the factory flexplate.
• Billet Twin-Disc converter: a high-performance torque converter manufactured using billet components for better power-holding and durability.
• Bypass upgrade: deletes the stock thermal control valve to improve fluid flow through your transmission for better cooling.
• Auxiliary Cooler Kit: adds a secondary transmission cooler to your truck to further improve cooling during heavy towing and racing applications.

Tuning Notes:

• This transmission can be ran with factory tuning
• For smooth shifts, please do not use max idle transmission line pressures. Line pressures should increase smoothly with throttle input until 225psi is reached before 1/4 throttle
• We strongly recommend keeping the factory lockup sequence to prevent harsh shifting and broken shafts
• Low/reverse sprag holdout is required on this transmission to prevent major gear train damage

Recommended gearing: the following gearing is recommended for the following tire sizes, and is required for Tier One to honor your warranty:

• 35 Tire: 4.10 gears or higher
• 37 Tire: 4.30 gears or higher
• +38 Tire: 4.56 gears or higher

Transmission Break-in: in order to maintain your warranty, this transmission requires a 300-mile break-in and a 100-mile relearn. Please check out Tier One's Break-In Procedure & Policy here.

Core charge: this transmission includes a $2500.00 core charge that will be refunded once Tier One receives your stock transmission, inspects it, and finds it acceptable condition. The core charge can be fully or partially waived if you send in or drop off your stock transmission ahead of time.

Freight Shipping: this transmission ships via freight. Please carefully inspect your transmission before signing your Bill of Lading. If your transmission arrives damaged, please call us directly at 602-399-5484.