Perf Street Sprung Disc by ACT Smooth engagement, quicker shifts, OE to mild gear rattle; Premium organic composite friction blended for high heat tolerance, increased burst strength, faster recovery from overheating and less wear of mating surfaces; Spring retainers feature heat-treated wraparound spring windows that provide support and reduce stress concentrations that are common causes for failure; Recommended for street and race use; Steel-backed linings for higher burst strength, reduced marcel for quicker shifts Features Product Weight (lbs.): 4.5 Disc Material: Organic Diameter (Inches): 9.8 Diameter (Millimeters): 250 SFI: 1.1 Benefits Smooth engagement, quicker shifts, OE to mild gear rattle Premium organic composite friction blended for high heat tolerance, increased burst strength, faster recovery from overheating and less wear of mating surfaces Spring retainers feature heat-treated wraparound spring windows that provide support and reduce stress concentrations that are common causes for failure Recommended for street and race use Steel-backed linings for higher burst strength, reduced marcel for quicker shifts Applications 1969-1971 Ford E-200 Econoline 1964-1970 Ford Falcon 1968-1974 Ford Torino 1964-1977 Mercury Comet 1965-1973 Ford Mustang What\’s In The Box? 1 – ACT Perf Street Sprung Disc Warranty ACT 1-Year Limited Warranty