# ACT GM6-HDR6 HD/Race Rigid 6 Pad for 1973 Buick Regal ACT Heavy-Duty Clutch Kits are high quality products guaranteeing superior functionality and efficiency. These products provide a clamp load increase up to 50 percent, increasing torque capacity. Important Note: 6-paddle solid center disc. Aggressive clutch engagement. **Key Features:** - 11" - Spline Size (Inches): 1-1/8 - Disc Type: Race Disc - Spline Count: 26 - Product Weight (lbs.): 28.2 - Torque Capacity (ft./lbs.): 940 - Light to moderate pedal effort, aggressive engagement, increased gear rattle - Moderate friction life, extended by ACT's exclusive diaphragm design, rigid design may increase spline wear - Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance - Recommended for race use only - 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability GM6-HDR6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 6-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 6-pad rigid race disc, engagement is harsher, but shifting is faster. The 6-pad rigid race disc is recommended for larger clutch sizes to absorb more heat. Since 1994, Advanced Clutch Technology has specialized in performance clutches and flywheels. All products are made from the highest quality materials and then necessarily tested to ensure they perform to the customers' expectations. ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 1973 Buick Regal Trim: BASE; Engine: 7.5L 1971 Chevrolet BEL AIR Trim: BASE; Engine: 5.7L 1971 Chevrolet Biscayne Trim: BASE; Engine: 5.7L 1971 Chevrolet Camaro Trim: BASE, Ss; Engine: 5.7L 1972 Chevrolet Camaro Trim: BASE, Z28; Engine: 5.7L 1973 Chevrolet Camaro Trim: BASE, LT, Z28; Engine: 5.7L 1974 Chevrolet Camaro Trim: BASE, LT; Engine: 5.7L 1975 Chevrolet Camaro Trim: BASE, LT, RS; Engine: 5.7L 1976 Chevrolet Camaro Trim: BASE, LT, LT Rally Sport, RALLY SPORT; Engine: 5.7L 1977 Chevrolet Camaro Trim: BASE, LT, LT Rally Sport, RALLY SPORT, Z28; Engine: 5.7L 1978 Chevrolet Camaro Trim: BASE, LT, LT Rally Sport, RALLY SPORT, Z28; Engine: 5.7L 1979 Chevrolet Camaro Trim: BASE, BERLINETTA, RALLY SPORT, Z28; Engine: 5.7L 1980 Chevrolet Camaro Trim: BASE, BERLINETTA, RALLY SPORT, Z28; Engine: 5.7L 1981 Chevrolet Camaro Trim: BERLINETTA, SPORT, Z28; Engine: 5.0L, 5.7L 1970 Chevrolet Chevelle Trim: BASE, Malibu, Ss; Engine: 7.4L 1971 Chevrolet Chevelle Trim: Ss; Engine: 7.4L 1972 Chevrolet Chevelle Trim: Ss; Engine: 7.4L 1970 Chevrolet Corvette Trim: BASE; Engine: 7.4L 1971 Chevrolet Corvette Trim: BASE; Engine: 7.4L 1972 Chevrolet Corvette Trim: BASE; Engine: 7.4L 1973 Chevrolet Corvette Trim: BASE; Engine: 5.7L, 7.4L 1974 Chevrolet Corvette Trim: BASE; Engine: 5.7L, 7.4L 1975 Chevrolet Corvette Trim: STINGRAY; Engine: 5.7L 1976 Chevrolet Corvette Trim: STINGRAY; Engine: 5.7L 1977 Chevrolet Corvette Trim: BASE; Engine: 5.7L 1978 Chevrolet Corvette Trim: BASE, INDIANAPOLIS 500 PACE CAR, SILVER ANNIVERSARY EDITION; Engine: 5.7L 1979 Chevrolet Corvette Trim: BASE; Engine: 5.7L 1980 Chevrolet Corvette Trim: BASE; Engine: 5.7L 1981 Chevrolet Corvette Trim: BASE; Engine: 5.7L 1982 Chevrolet Corvette Trim: BASE, COLLECTOR'S EDITION; Engine: 5.7L 1971 Chevrolet Impala Trim: BASE; Engine: 5.7L 1971 Oldsmobile Cutlass Trim: BASE, S; Engine: 5.7L 1972 Oldsmobile Cutlass Trim: BASE, Cruiser, S; Engine: 5.7L 1973 Oldsmobile Cutlass Trim: BASE, S; Engine: 5.7L 1973 Pontiac Firebird Trim: FORMULA, TRANS AM; Engine: 7.5L 1974 Pontiac Firebird Trim: FORMULA, TRANS AM; Engine: 7.5L 1975 Pontiac Firebird Trim: TRANS AM; Engine: 7.5L 1976 Pontiac Firebird Trim: TRANS AM; Engine: 7.5L 1981 Pontiac Firebird Trim: FORMULA, TRANS AM; Engine: 5.0L 1971 Pontiac GTO Trim: BASE, The Judge; Engine: 7.5L 1972 Pontiac GTO Trim: BASE; Engine: 7.5L 1973 Pontiac GTO Trim: BASE; Engine: 7.5L ### FAQ **Will this fit my vehicle?** Please verify your year, make, model, position, and any fitment notes using the compatibility table above before purchase. **What part number is this?** The listed part number is GM6-HDR6. **Is this product designed for direct replacement?** Yes. This product is intended to match the compatible vehicle applications listed in the fitment table. **Should I confirm fitment before ordering?** Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering. ### Common Searches - HD/Race Rigid 6 Pad for Buick Regal - GM6-HDR6 fitment - ACT HD/Race Rigid 6 Pad - 1973 Buick Regal HD/Race Rigid 6 Pad - ACT GM6-HDR6 replacement ## Details - **Price:** 1288.73 CAD - **Vendor:** ACT - **Type:** HD/Race Rigid 6 Pad - **Tags:** 1973 Buick Regal, ACT, Clutch, Clutch Disc, Flywheel, GM6-HDR6, HD/Race Rigid 6 Pad, Performance Clutch, Pressure Plate ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 1288.73 CAD | In stock | ## Images - ACT GM6-HDR6 HD/Race Rigid 6 Pad for 1973 Buick Regal --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/act-gm6-hdr6-hd-race-rigid-6-pad) > Updated: 2026-10-16