SOUTH BEND SDD3250-5K-ORG STREET/TOW DUAL DISC – 30K TOWING – 94–04 DODGE RAM 5.9L CUMMINS (NV4500 & NON-HO NV5600) W/ 1-3/8" INPUT SHAFT KIT

Built to tow big with OEM-like manners. The SDD3250-5K-ORG is South Bend’s all-organic Street/Tow dual disc that delivers smooth engagement, light pedal effort, and the durability you need for heavy towing up to ~30,000 lbs GCW when the truck is properly geared and maintained. This “5K” full kit includes the 1-3/8" input shaft upgrade for increased strength over the factory 1.25" shaft.

• Capacity: ~550 HP / ~1,100 ft-lbs (truck & tune dependent)
• Use case: Street, daily driving, and serious towing
• Friction: Dual disc, all-organic facings for the smoothest engagement
• Pressure plate: Diaphragm style for lighter pedal
• Includes: 1-3/8" input shaft upgrade, flywheel, bearings, alignment tool, hardware

FITMENT

• Engine: 5.9L Cummins
• Model Years: 1994–2004 Dodge Ram 2500/3500
• Transmissions: NV4500 5-speed and NV5600 Non-HO 6-speed (approx. 1999–2000.5)
• Input Shaft: Upgrades to 1-3/8" (included in this kit). If you’re staying stock 1.25", see alternatives below.

WHAT'S INCLUDED

• Diaphragm pressure plate
• Two organic clutch discs with floater plate
• Ductile flywheel
• 1-3/8" hardened input shaft (5K kit), pilot & release bearings
• Alignment tool & hardware

CROSS-REFERENCE / ALTERNATIVES

• SDD3250-5-ORG — Same organic Street/Tow for stock 1.25" input shaft (NV4500 & early NV5600 Non-HO).
• SDD3250-5 — Multi-friction Street/Tow (650 HP class) for stock 1.25" input.
• SDD3250-6 — For NV5600 HO (2000.5–2005.5).
• South Bend HD Hydraulics — Stronger, consistent release for higher-clamp systems.

INSTALL & TOWING NOTES

• Confirm transmission model and input shaft specs before ordering. This kit converts to 1-3/8".
• Follow South Bend’s break-in procedure for best life and engagement.
• 30K GCW towing assumes a healthy drivetrain, correct gearing, and safe EGT management. Drive responsibly.

FAQ

Yes. The “5K” in SDD3250-5K-ORG denotes the full kit with the upgraded 1-3/8" input shaft, bearings, and hardware.

The all-organic facings prioritize smooth, quiet engagement and daily drivability, with substantial holding power for towing.

Per South Bend listings, it fits Non-HO NV5600 (approx. 1999–2000.5). HO NV5600 trucks (2000.5–2005.5) should use the SDD3250-6.

Commonly advertised for up to ~30,000 lbs GCW when installed and used correctly. Always monitor EGTs and avoid lugging.

Not strictly required, but HD hydraulics help with consistent release—recommended on older trucks or heavier clamping systems.