SOUTH BEND SFDD3250-6.0 STREET/TOW DUAL DISC CLUTCH KIT W/ 3250 PRESSURE PLATE – 2004–2007 FORD 6.0L POWER STROKE ZF-6

Built for heavy towing and daily drivability. The South Bend SFDD3250-6.0 is a Stage 3 street/tow dual disc system for 6.0L Power Stroke trucks with the ZF-6 6-speed. A diaphragm-style 3250 pressure plate delivers light pedal effort and strong holding power—ideal for tuned street trucks that still work.

• Capacity: up to ~650 HP / ~1,300 ft-lbs (vehicle dependent)
• Use Case: Street & towing (not for competition use)
• Pedal Feel: Light, diaphragm pressure plate with smooth engagement
• Discs: Dual, street/tow friction (multi-friction lineup; organic/organic variant also available)
• Flywheel: Included

FITMENT

• Engine: 6.0L Power Stroke Diesel
• Model Years: 2004–2007 Ford F-250 / F-350 (select F-450/550 chassis cab fit may vary)
• Transmission: ZF-6 (ZF S6-650) 6-speed manual
• Input: 1.375" (1-3/8") x 10-spline (verify before ordering)

WHAT'S INCLUDED

• 3250 diaphragm pressure plate
• Two street/tow clutch discs with floater
• Flywheel (matched)
• Pilot bearing, release bearing, alignment tool, and hardware

CROSS-REFERENCE / ALTERNATIVES

• SFDD3250-6.0-ORG: Full organic Street Dual Disc (slightly lower capacity, smoother engagement)
• Single-disc street/tow options: For mild builds and lighter towing
• HD hydraulics & new slave/master: Recommended if your factory hydraulics are aged

INSTALL NOTES

• Confirm ZF-6 and input spline (1.375" 10-spline) prior to purchase.
• Follow South Bend break-in procedure for best life and engagement quality.
• Not SFI-certified; not intended for competition (sled pulls, drag launches, etc.).

FAQ

It’s commonly rated around 650 HP and about 1,300 ft-lbs in street/tow service when the rest of the drivetrain is healthy.

Yes. The diaphragm-style 3250 pressure plate delivers a lighter pedal than many performance clutches while maintaining strong clamping force.

Yes, this kit includes a matched flywheel along with bearings, alignment tool, and hardware.

No. This is a street/tow system and is not SFI-certified. For competition, choose an appropriate SFI-rated package.

Not strictly required, but aging factory hydraulics can cause release issues. Many owners pair this clutch with fresh or heavy-duty hydraulics.