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ACT FM3-HDSS Heavy Duty/Performance Street Sprung Kit
The ACT FM3-HDSS kit combines a Heavy Duty pressure plate with a Performance Street disc, engineered for those who demand reliability and performance from their clutch system. Designed specifically for high-demand applications, this kit is ideal for both street driving and competitive racing scenarios.
Pressure Plate Features
The Heavy Duty pressure plate utilizes an exclusive diaphragm design that increases clamp load while minimizing deflection, resulting in enhanced clutch longevity. Each diaphragm undergoes a rigorous four-stage heat-treating process, ensuring exceptional performance under stress. The precision stamping of the cover adds rigidity and consistency, contributing to the overall durability of the assembly.
Clutch Disc Specifications
ACT's Performance Street disc is crafted from premium organic materials with a high copper content, optimizing heat transfer and durability. The steel-backed lining provides greater burst strength, making it suitable for high RPM applications. Additionally, this disc features reduced marcel for quicker shift action, ensuring a smooth and responsive driving experience.
Installation Notes
For detailed installation instructions, refer to the installation guide.
Key Features
- Light to moderate pedal effort with smooth engagement.
- Extended friction life due to ACT's diaphragm design.
- Precision-engineered for balance and reliability at high RPMs.
- Recommended for both street and race applications.
- 100% clamp load tested for consistent performance.
Specifications
- Clutch Disc Diameter: 11 in (280 mm)
- Disc Material: Organic
- Input Spline Quantity: 10
- Input Shaft Diameter: 1.0625 in
- Product Weight: 26 lbs
- Torque Capacity: 605 ft/lbs (23% increase over OE)
- Grease Included: Yes
- Alignment Tool Included: Yes
- Pilot Bearing Included: Yes
Fitment
- Ford Mustang 1999-2004
- Ford Mustang GT 1999-2004
- Ford Mustang SVT Cobra 1999, 2001, 2003-2004
Other Part Numbers:
ACT #actFM3-HDSS
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1999-2004 Ford Mustang |
Mustang | 1999-2004 |
|
1999-2004 Ford Mustang GT |
Mustang GT | 1999-2004 |
|
1999, 2001, 2003-2004 Ford Mustang SVT Cobra |
Mustang SVT Cobra | 1999, 2001, 2003-2004 |
If you've added boost, tuned for more power, or simply want better throttle control, then your stock clutch won't cut it. That?s where ACT (Advanced Clutch Technology) comes in delivering high-performance clutch kits and flywheels designed for real drivers who push their builds on the street, strip, or track.
ACT?s lineup includes everything from daily driver friendly HD kits to hardcore twin disc setups for serious horsepower. Whether you?re launching hard in a WRX, drifting in a 370Z, or canyon carving in an M3, ACT gives you the torque capacity and engagement you need without sacrificing drivability.
Why ACT? Because Power Without Control Is Useless.- Hold More Power Engineered to handle turbo, supercharger, and high-compression builds
- Faster Engagement Stronger pressure plates for better bite off the line
- Better Pedal Feel Balanced response without going full race-car stiff
- Reduced Rotational Mass Lightweight flywheels improve rev-matching and response
- No Guesswork Direct-fit applications, no fabbing, no hassle
ACT doesn?t just make universal performance parts ? they build complete, vehicle-specific clutch solutions for enthusiast favorites. Whether you daily a Civic Type R, track a Subaru STI, drift a 240SX, or drag a Mustang GT, ACT offers the right clutch to match your build goals.
Top supported platforms include the Nissan 350Z/370Z, Toyota Supra A90, Chevy Camaro SS/ZL1, Mitsubishi Evo, Ford Focus RS/ST, and BMW M3/M4 ? each with clutch options tuned to your driving needs.
What ACT Offers:- Performance Clutch Kits From HD street kits to twin-disc race systems
- Clutch Discs 6-puck, full-face, rigid or sprung to match your style
- Pressure Plates Heavy-duty options that increase clamp load without sacrificing control
- Chromoly Lightweight Flywheels Quicker revs, smoother shifts, and less drivetrain stress
- Complete Hardware Kits Everything you need for a proper install
ACT isn?t hype ? it?s proven. Their clutches are SFI-certified, track-tested, and used by racers in drag, time attack, autocross, drift, and rally. But what really matters? They hold power, last longer, and feel right even after hundreds of hard launches or hours of canyon carving.
Whether you're upgrading for more power or replacing a tired OEM clutch, ACT gives you the bite, strength, and feel to drive harder with confidence. No compromises, no excuses just parts that work when it matters.
ACT warrants all products to be free of defects in materials and workmanship for normal use and service for a period of one (1) year from retail purchase. Written notice must be immediately given to ACT within the warranty period. We require a copy of the purchase receipt showing the unit was purchased from an Authorized Dealer or Advanced Clutch Technology directly to verify the product is under warranty. Products purchased used do not carry a warranty. This warranty is to the original purchaser and is non-transferable. All non-warranty items are subject to a $50 inspection bench test fee.
ACT reserves the right to examine any part returned for warranty claim to determine, to ACT's satisfaction, whether the material or workmanship of the part does not conform to this limited warranty. ACT's obligation under this warranty shall be limited to repairing, replacing, or crediting, at its option, any part which is deemed covered by ACT. No labor, lift or storage charges will be reimbursed for any reason. Damage to ACT's parts resulting from misuse, improper use, or abuse shall void this limited warranty. Failure to follow ACT's installation instructions and the vehicle manufacturers installation procedures and specifications shall void this limited warranty.
ACT undertakes no responsibility for the quality of the goods except as otherwise provided in this contract. ACT assumes no responsibility that the goods will be fit for any particular purpose for which you may be buying these goods, except as otherwise provided in the contract. ACT shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty.
ACT reserves the right to examine any part returned for warranty claim to determine, to ACT's satisfaction, whether the material or workmanship of the part does not conform to this limited warranty. ACT's obligation under this warranty shall be limited to repairing, replacing, or crediting, at its option, any part which is deemed covered by ACT. No labor, lift or storage charges will be reimbursed for any reason. Damage to ACT's parts resulting from misuse, improper use, or abuse shall void this limited warranty. Failure to follow ACT's installation instructions and the vehicle manufacturers installation procedures and specifications shall void this limited warranty.
ACT undertakes no responsibility for the quality of the goods except as otherwise provided in this contract. ACT assumes no responsibility that the goods will be fit for any particular purpose for which you may be buying these goods, except as otherwise provided in the contract. ACT shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty.
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