Product Description
SOUTH BEND SDD3250-G STREET/TOW DUAL DISC CLUTCH – 2005.5–2018 DODGE RAM 5.9L/6.7L CUMMINS (G56)
Work. Tow. Daily. The South Bend SDD3250-G is a multi-friction (organic/ceramic) street/tow dual disc engineered for G56-equipped Cummins trucks that tow hard yet need smooth, consistent engagement. Expect light pedal effort from the diaphragm pressure plate and serious holding power without a harsh “on/off” feel.
- Capacity: ~650 HP / ~1,300 ft-lbs (truck/mods dependent)
- Use case: Street/Tow, daily driving, heavy towing (30K+ lbs capable)
- Discs: Dual, multi-friction (half organic / half ceramic)
- Flywheel: Ductile iron flywheel included
- Hydraulics: Recommended; not included
- Certification: Not SFI (street/tow application)
FITMENT
- Engine: 5.9L (2005.5–2007) & 6.7L (2007.5–2018) Cummins
- Model Years: 2005.5–2018 Dodge/Ram 2500/3500
- Transmission: G56 6-speed manual
- Input Shaft: Stock 1.25" (verify before ordering). If upgrading to 1-3/8", choose the appropriate clutch & shaft.
WHAT'S INCLUDED
- Performance diaphragm pressure plate
- Two multi-friction discs with floater plate
- Ductile flywheel
- Pilot bearing, release bearing, alignment tool, hardware
CROSS-REFERENCE / ALTERNATIVES
- Need hydraulics included + full organic (towing): SDD3250-GK-ORG
- Smoother engagement, ~550 HP: SDD3250-G-ORG (Full Organic)
- G56 Input Shaft (OEM size replacement): USA ZMG56-16A
- South Bend HYDX.750 Hydraulic Assembly (03+ Cummins)
- Alternative single disc (lighter builds): G56-OR-HD
INSTALL NOTES
- Verify G56 input shaft size (stock 1.25" for this kit) before ordering.
- Follow South Bend break-in for best life and engagement.
- Fresh/HD hydraulics improve consistency on higher-clamp systems.
FAQ
Is the SDD3250-G good for frequent heavy towing?Yes. This Street/Tow dual disc is commonly used on heavy tow rigs when the rest of the drivetrain is healthy. Downshift as needed to manage load and EGTs.
How does pedal feel compare to stock?
Pedal effort is relatively light for the capacity thanks to the diaphragm pressure plate. Engagement is smooth and predictable for daily driving.
Does this include hydraulics?
No. Hydraulics are recommended but not included. Consider the HYDX.750 or the GK variants that bundle hydraulics.
What if I’m upgrading to a 1-3/8" input shaft?
You’ll need a clutch matched to the larger shaft. If you plan a shaft upgrade, see our G56 input shaft options and related clutch kits.
Is this clutch SFI certified?
No. It’s a street/tow system. For competition use, choose an SFI-rated package.
