South Bend Clutch, Single Disk Ford (2008-10) 6.4L Powerstroke, 425HP

The South Bend Clutch 1950-64DFK 13" Dual Friction Clutch Kit is purpose-built for Ford Super Duty owners who demand both towing muscle and daily driving comfort. Engineered for the 2008–2010 Ford 6.4L Powerstroke with the ZF S6-750 6-speed manual, this kit features a dual friction disc with Kevlar on one side and ceramic on the other. This combination delivers smooth, chatter-free engagement when maneuvering heavy loads, while the ceramic side ensures exceptional holding power and heat resistance under high-torque conditions.

With a performance rating of up to 425 horsepower and 900 ft-lbs of torque, the 1950-64DFK is designed to handle the demands of heavy towing-up to 25,000 lbs-without sacrificing drivability. The included South Bend single mass flywheel replaces the problematic OEM dual mass unit, enhancing reliability and clutch life. All necessary installation hardware is included, making this a comprehensive upgrade for serious work or performance use.

Differences Between 1950-64DFK and 1950-64CBK:

• The 1950-64DFK uses a dual friction disc (half Kevlar, half ceramic), providing smoother engagement and better drivability for towing and daily use.


• The 1950-64CBK features a full ceramic disc, which offers slightly higher horsepower capacity (450 HP) but tends to engage more aggressively, making it less ideal for frequent towing or stop-and-go situations.


• The 1950-64DFK is specifically rated for up to 25,000 lbs towing, while the 1950-64CBK is more focused on maximum power holding for performance builds.


• If your priority is towing and all-around usability, the 1950-64DFK is the superior choice. If you need maximum holding for high-power applications and can tolerate harsher engagement, consider the 1950-64CBK.