68RFE Transmission 800 HP 2007.5-2018

The WP Developments  800HP 68RFE is a high-performance transmission package designed for heavy-duty use in trucks equipped with the 68RFE automatic transmission, commonly found in Dodge RAM vehicles with Cummins diesel engines. This upgraded transmission is built to handle up to 900 horsepower, making it an excellent choice for drivers with modified engines, high-performance builds, or those who engage in demanding towing, off-road, or racing applications.

Key features of the WP Developments 800HP 68RFE include:

• WP Developments Extreme pump assembly:

 Precisely machined flat

Spec’d for gear depth

Bores are refurbished and vacuum verified

New Sonnax pump gears

Revmax Zero-Flex billet pump cover 

• WP Developments Extreme Valve body: 

Verified Flatten on all surfaces to ensure no cross leaks

SSV bore over-sized with a Trans-go style valve

HD accumulator plate that is secured with precision torque wrenches and loctite

Sonnax accumulators 

Billet Channel plate 

Custom Low Reverse Switch Valve 

Brand new OEM solenoid that is Dyno tested at WP Developments 

Modified for high volume and high pressure performance applications 

• Billet Sonnax input shaft that has been tested in house over 2000HP

• Sonnax custom stack up Overdrive assembly 

• WP Developments Spiral lock snap-ring upgrades

• HD Borg-Warner Sprag assembly spec’d by WPD 

• Welded Rear planet assembly to prevent pin walking

• Billet custom 2C piston

• Custom 2C clutch stack 

• WPD-682  model Extreme torque converter with a custom stall 

• Mopar OEM seal kit

• Mopar Filter kit with billet screw-on insert

• Deep Pan

• Billet SFI rated flexplate

• Pump and Valvebody stud kit with ARP hardware

The WP Developments 900 HP 68RFE is ideal for enthusiasts looking for a transmission that can keep up with their high-performance diesel truck, delivering reliability, strength, and efficiency even at the upper limits of horsepower and torque. Whether used for competitive racing, towing heavy loads, or simply for extreme performance, this transmission package is engineered to handle it all.

68RFE Transmission Core Charge Policy

$2,000 core charge added at check out and will be refunded when returned in whole with no damage. The following deductions will be made to the $2,000 charge when there is damage to one or more of the following, but charges will not exceed the $2,000 core.

- WP Transmission Core $2,000
- Convertor $500
- Pump $500
- Valve Body $500
- Case $1,500
- Shipping Crate $500

Warranty Disclaimer