Product Description
SOUTH BEND SFDD3250-5 STREET/TOW DUAL DISC CLUTCH – 1994–1998 FORD 7.3L POWER STROKE (ZF5)
Put power down without punishing your left leg. The South Bend SFDD3250-5 is a dampened, street/tow dual disc engineered for the 7.3L Power Stroke with the ZF 5-speed. Expect smooth engagement, light pedal effort from the diaphragm pressure plate, and serious holding power for tuned trucks that still tow and daily drive.
- Capacity: ~650 HP / ~1,300 ft-lbs (truck/setup dependent)
- Use Case: Street, daily driving, towing
- Design: Dual disc with dampened center plate to reduce rattle
- Pressure Plate: 3250 lb diaphragm for high hold with lighter pedal
- Flywheel: Included
- Not SFI certified (street/tow use; not for competition)
FITMENT
- Engine: 7.3L Power Stroke diesel
- Model Years: 1994–1998 Ford F-250/F-350 (OBS)
- Transmission: ZF S5-47 5-speed manual (ZF5)
WHAT'S INCLUDED
- 3250 lb diaphragm pressure plate
- Dual clutch discs with dampened center plate
- Flywheel
- Pilot bearing, release bearing, alignment tool, hardware
CROSS-REFERENCE / ALTERNATIVES
- SFDD3250-5-ORG – Full Organic Street/Tow Dual Disc (for heavy towing with smoother engagement)
- SFDD3250-6 – Street/Tow Dual Disc for 1999–2003.5 7.3L with ZF-6 (6-speed)
- HYDX-F57.3 – South Bend HD Hydraulic Assembly for 1994–1997 ZF5 trucks
INSTALL & NOTES
- Verify transmission (ZF5) and model year before ordering.
- Follow South Bend’s break-in procedure for maximum life and smoothness.
- Older trucks benefit from fresh/HD hydraulics for consistent release.
FAQ
How much power and torque will this hold?South Bend lists this Street/Tow dual disc around 650 HP and 1,300 ft-lbs depending on overall setup. It’s designed for tuned street trucks that still tow.
Is pedal effort manageable for daily driving?
Yes. The diaphragm-style 3250 lb pressure plate provides strong clamping with a lighter, more manageable pedal feel than many performance clutches.
Will this fit my 1999–2003.5 Super Duty with the ZF-6?
No. ZF-6 trucks use a different kit; look to the SFDD3250-6 for 1999–2003.5 7.3L with the 6-speed.
Do I need to upgrade my clutch hydraulics?
It isn’t strictly required, but many OBS owners install South Bend’s HYDX-F57.3 hydraulic assembly for better pedal feel and consistent release—especially on older systems.
Is this clutch SFI certified?
No. It’s a street/tow system and not intended for competition use.
