Upgrade your 2005.5–2018 Dodge Ram Cummins with the South Bend SDD3250-GK Street Dual Disc Clutch Kit. This premium Stage 3 clutch is engineered specifically for trucks with the G56 6-speed manual transmission and delivers the perfect balance of holding power, drivability, and towing capability.

Whether you’re daily driving, towing heavy loads, or running moderate performance modifications, the SDD3250-GK gives you significantly more torque capacity than stock or single-disc clutches while maintaining smooth, street-friendly engagement.

Key Features & Benefits

• Dual-Disc Design — Two clutch discs provide superior heat dissipation and torque capacity compared to single-disc clutches.
• Hybrid Friction Material — 12 organic buttons on the flywheel/pressure plate side for smooth, easy engagement + 12 ceramic buttons on the center plate side for excellent holding power and heat resistance.
• High-Clamping Pressure Plate — 13" diaphragm-style 3,250 lb pressure plate delivers strong grip with relatively light pedal effort.
• Quiet & Refined Operation — Stabilized center plate with hardened dowel pins, neoprene dampeners, and dampened free-travel discs reduce rattle, gear rollover noise, and drivetrain vibration.
• Complete Hydraulic Upgrade Included — Comes with the Hyd-X-.750 upgraded master and slave cylinder assembly (required for proper function with this clutch).
• Heavy-Duty Components — Includes solid mass ductile iron flywheel, heavy-duty double-sealed roller pilot bearing, clutch fork, throw-out bearing, crank bolts, and alignment tool.

Rated for up to 650 HP and 1,300 ft-lbs of torque while still being capable of towing over 30,000 lbs. Perfect for modified daily drivers and serious towing applications.

Vehicle Fitment

• 2005.5–2007 Dodge Ram 2500/3500 with 5.9L Cummins + G56 6-speed
• 2007.5–2018 Dodge Ram 2500/3500/4500/5500 with 6.7L Cummins + G56 6-speed

Note: Fits second-half 2005 and newer trucks with the G56 transmission.

What’s Included in the SDD3250-GK Kit

• Dual-disc clutch assembly (hybrid organic/ceramic)
• 13" 3,250 lb diaphragm pressure plate
• Solid mass ductile iron flywheel
• Hyd-X-.750 upgraded hydraulic master & slave cylinder assembly
• Heavy-duty roller pilot bearing
• Clutch fork & throw-out bearing
• Crank bolts & alignment tool

Important Notes

• Not SFI approved — Not intended for competition use (sled pulling, drag racing, etc.).
• Not recommended for completely stock applications (best suited for trucks with added power or heavy towing demands).
• The upgraded hydraulics included in this “GK” kit are required for proper clutch operation.
• The stock G56 input shaft is sufficient — no input shaft upgrade is included or required.

This is one of the most popular “street dual disc” options for G56 Cummins trucks because it offers excellent drivability, strong holding power, and the convenience of a complete kit with the necessary hydraulic upgrade.