Product Description
SOUTH BEND SDD3250-6 STREET/TOW DUAL DISC CLUTCH – 2000.5–2005.5 DODGE RAM 5.9L CUMMINS (NV5600 HO 1-3/8")
HO-spec holding power with street/tow manners. The South Bend SDD3250-6 is a half-organic/half-ceramic dual disc engineered for the NV5600 HO trucks. It delivers smooth engagement, light diaphragm pedal effort, and serious capacity for tuned 5.9L Cummins that still tow.
- Capacity: ~650 HP / ~1,300 ft-lbs (setup dependent)
- Use case: Street/Tow, daily driving, heavy towing
- Pedal feel: Light, diaphragm-style pressure plate
- Discs: Dual, half-organic / half-ceramic
- Flywheel: Ductile iron, included
- Not SFI certified (street/tow use)
FITMENT
- Engine: 5.9L Cummins
- Model Years: 2000.5–2005.5 Dodge Ram 2500/3500 (HO)
- Transmission: NV5600 HO 6-speed
- Input Shaft: 1-3/8" (1.375") HO spec
- Note: Not for 1999–2000 Non-HO or NV4500. See cross-reference below.
WHAT'S INCLUDED
- Diaphragm pressure plate
- Two clutch discs with floater plate (half-organic/half-ceramic)
- Ductile flywheel
- Pilot bearing, release bearing, alignment tool, hardware
CROSS-REFERENCE / ALTERNATIVES
- For NV4500 & early Non-HO NV5600 (1.25" input): SDD3250-5 Street/Tow Dual Disc
- South Bend HD Hydraulics – recommended for higher clamp loads
- 1-3/8" Input Shaft Upgrade info (for users moving from 1.25" systems)
INSTALL NOTES
- Confirm HO/NV5600 and 1-3/8" input before ordering.
- Follow South Bend break-in for best life and engagement.
- Consider fresh/HD hydraulics for consistent release under load.
FAQ
Will this fit my 1999 or early 2000 truck?No. Those are typically Non-HO with 1.25" input. Use the SDD3250-5 or verify transmission/input before purchase.
What makes the SDD3250-6 different from the SDD3250-5?
The -6 is for NV5600 HO trucks with a 1-3/8" input (2000.5–2005.5). The -5 targets NV4500 and early Non-HO NV5600 1.25" applications.
Is it good for heavy towing?
Yes—this Street/Tow dual disc is commonly used for heavy towing when the rest of the drivetrain is healthy. Shift as needed to manage EGT and torque load.
How’s the pedal feel?
Surprisingly light for the holding capacity thanks to the diaphragm pressure plate, with smooth, predictable engagement.
Is this SFI certified?
No. It’s a street/tow system. For competition use, choose an SFI package.
