Product Description
SOUTH BEND SDD3250-6-ORG STREET DUAL DISC – HEAVY TOWING – 2000.5–2005.5 RAM 5.9L CUMMINS NV5600 HO (1-3/8" INPUT)
Heavy towing without the drama. The South Bend SDD3250-6-ORG is a full-organic Street Dual Disc engineered for the HO 5.9L Cummins with the NV5600. It delivers smooth, predictable engagement and light pedal effort while handling serious tow loads.
- Capacity: ~550 HP / ~1,100 ft-lbs (truck dependent)
- Use case: Street / Heavy Towing (not for competition)
- Friction: Full-organic dual discs for maximum drivability
- Pressure plate: Diaphragm-style for lighter pedal effort
- Flywheel: Ductile iron flywheel included
- SFI: Not SFI-certified (street/tow focus)
FITMENT
- Engine: 5.9L Cummins HO (245 hp)
- Model Years: 2000.5–2005.5 Dodge Ram 2500/3500
- Transmission: NV5600 6-speed (HO)
- Input Shaft: 1-3/8" (1.375") 10-spline required
WHAT'S INCLUDED
- Diaphragm pressure plate
- Two full-organic clutch discs with floater
- Ductile flywheel
- Pilot bearing, release bearing, alignment tool, hardware
CROSS-REFERENCE / ALTERNATIVES
- SDD3250-6 (mixed friction Street Dual Disc) – similar NV5600 HO fitment
- SDD3250-5 (Street/Tow Dual Disc) – for NV4500 & early Non-HO NV5600 1.25" input (1994–2004)
- HYDX.750 / HYDX.1.50 – South Bend HD hydraulic assemblies (recommended on higher clamp loads)
INSTALL NOTES
- Verify 1-3/8" input shaft before ordering (HO NV5600). This kit will not fit 1.25" input setups.
- Follow South Bend break-in procedure for best life and smoothness.
- Inspect/upgrade hydraulics if your existing system is weak or aging.
FAQ
Is the SDD3250-6-ORG good for heavy towing at 20–30k GCW?Yes. This full-organic Street Dual Disc is specifically favored for heavy towing because it balances holding power with smooth engagement and manageable pedal effort.
How does it drive compared to ceramic or mixed-friction dual discs?
Organic facings offer the smoothest engagement and best daily manners. Mixed/ceramic options may hold more heat but are typically more abrupt.
Will it fit my 2001 NV5600 non-HO truck?
No. Non-HO NV5600 and NV4500 applications typically use a 1.25" input and different clutch kits. See SDD3250-5–series options.
Is this SFI-approved for competition?
No. It is intended for street and towing. For competition use, select an SFI-rated package.
Do I need to upgrade the hydraulics?
Not strictly required, but HD hydraulics are recommended for consistent release and longer service life—especially on older trucks.
