If you’re looking to take your ride to the next level, the ACT HD/Race Rigid 4 Pad Kit (TC1-HDR4) is where it’s at. This isn’t just any clutch kit; it’s built for those who want to feel every shift and maximize their performance. You’ve got ACT’s Heavy Duty pressure plate in here, which is a fan favorite for a reason. It uses a unique diaphragm design that cranks up the clamp load while keeping deflection to a minimum. This means you get a longer clutch life and more reliable performance on the track or street.

Now, let’s talk about that diaphragm. Each one goes through a four-stage heat-treating process, so you know it’s tough. The precision cover stampings add some serious rigidity and consistency, which is crucial when you’re pushing your car to its limits. The 4-pad rigid race discs are made from high-quality ceramic materials that can handle the heat, and the chrome-moly hub is heat-treated for added strength. What does that mean for you? Quicker shifts and a smoother driving experience, even when you’re really putting the pedal to the metal.

Sure, the engagement can be a bit harsher with this setup, but the trade-off is lightning-fast shifts. It’s particularly suited for smaller disc sizes in compact engines, making it a solid choice for those who want that extra edge in performance.

Install Instructions:

• For Instructions CLICK HERE

Features:

• Light to moderate pedal effort with aggressive engagement and some gear rattle
• Moderate friction life, but it’s extended thanks to that ACT diaphragm design; just a heads up, the rigid setup might wear your spline a bit faster
• Engineered and assembled with precision, using select ceramic materials for high heat tolerance
• Best suited for race use—if you’re serious about your performance, this is it
• Each unit is 100% clamp load tested and dynamically balanced for reliability at high RPMs

Specifications:

• Clutch Master Cylinder Included: No
• Grease Included: Yes
• Grade Type: Performance
• Flywheel Included: No
• Pilot Bushing Included: No
• Pressure Plate Type: Heavy Duty
• Release Bearing Included: Yes
• Clutch Disc Diameter: 8.3 in (212 mm)
• Disc Material: Ceramic
• Input Spline Quantity: 21
• Input Shaft Diameter: 0.9375 in
• Alignment Tool Included: Yes
• Disc Type: Solid
• Pressure Plate Bolts Included: No
• Clutch Slave Cylinder Included: No
• Flywheel Bolts Included: No
• Pilot Bearing Included: No
• Product Weight: 11.3 lbs
• Torque Capacity: 305 ft/lbs
• Torque Capacity Over OE: 0.69

Products Fitment:

• Geo Prizm 1990-1991
• Toyota Celica 1989-1991
• Toyota Corolla 1989-1991
• Toyota MR2 1985-1989