Spec Clutch STD635 Stage 5 Performance Clutch Disc

The Spec Clutch STD635 is a high-performance Stage 5 clutch disc engineered for extreme street and drag racing applications. This aggressive single-disc component features a full-metallic friction material with the highest possible friction coefficient for maximum holding power and heat resistance.

Key Features:

• Full-metallic disc construction for extreme friction coefficient
• Solid 12-rivet hub design for maximum strength
• Heat-treated assembly for enhanced durability under extreme conditions
• Stage 5 performance rating designed for race applications
• SFI approved for safety and quality assurance

Performance Characteristics:

• Street drivable but not street-friendly due to aggressive engagement
• Best suited for extreme street, drag racing, and high-horsepower applications
• Requires proper break-in period of 450 miles minimum
• Expected clutch chatter and firm engagement are normal characteristics

SPEC Clutch products are manufactured in the USA under strict tolerances using only the highest quality materials. Stage 5 components are designed specifically for race-oriented builds and high-performance applications where maximum holding capacity is required. Professional installation and proper break-in procedures are essential for optimal performance and longevity.

Important: This is a clutch disc only. Complete clutch kit components including pressure plate, release bearing, and alignment tool are sold separately. Flywheel must be resurfaced prior to installation to ensure proper friction surface integrity.