Upgrade your Ram Cummins with confidence. The South Bend G56-OFEK Dyna Max is a Stage 2 single-disc clutch kit engineered specifically for 5.9L and 6.7L Cummins trucks equipped with the G56 transmission. It delivers smooth street manners with the strength to handle added horsepower and torque from programmers, tunes, and moderate performance upgrades.

This kit replaces the factory dual-mass flywheel with a solid ductile-iron flywheel and features a hybrid Organic/Feramic (OFE) clutch disc—one side performance organic for smooth, low-effort engagement and the other side Feramic for superior heat resistance and durability. The pressure plate is modified for increased clamping force while maintaining excellent drivability.

Key Benefits

• Handles up to 475 HP and 1,000 ft-lbs of torque (ideal for tuned trucks or heavy towing)
• Converts from problematic dual-mass flywheel to a solid flywheel for better performance and longevity
• Smooth engagement with strong holding power — great daily driver and towing combination
• Includes upgraded heavy-duty hydraulic assembly for improved pedal feel and reliability
• Full kit includes everything needed for a complete installation

What's Included

• South Bend Organic/Feramic clutch disc (full-face, sprung hub, 13" / 330 mm)
• Modified diaphragm pressure plate
• Solid ductile-iron flywheel (replaces stock dual-mass)
• Upgraded heavy-duty hydraulic assembly (Hydx .750)
• Throw-out bearing
• Heavy-duty pilot bearing/bushing
• Alignment tool
• Mounting hardware

Vehicle Fitment

2005.5–2018 Dodge/Ram 2500/3500 with 5.9L or 6.7L Cummins and G56 6-speed manual transmission.

• 2005.5–2007.5 5.9L Cummins
• 2007.5–2018 6.7L Cummins

Note: This is a performance upgrade clutch. It is not recommended for completely stock trucks or extreme competition use (sled pulling, drag racing, etc.).

Technical Specifications

• Clutch Type: Stage 2 single disc, Organic/Feramic (OFE)
• Disc Diameter: 13" (330 mm)
• Input Shaft: 1.375" x 10 spline
• Flywheel: Solid ductile iron (8-bolt)
• Towing Capacity: Up to ~25,000 lbs (with proper power levels)
• Warranty: Manufacturer’s limited warranty (typically 90 days to 1 year/12,000 miles — register promptly and follow break-in procedure)

Important Notes:

• Proper clutch break-in (approximately 500 miles of stop-and-go driving) is required before heavy towing or loaded use.
• Always verify your transmission and current clutch/flywheel setup before ordering.

Ready to give your Cummins the clutch upgrade it deserves? The South Bend G56-OFEK Dyna Max delivers the perfect balance of smooth street performance and the torque-holding capacity needed for real-world Cummins use.