All South Bend Clutches are unbeatable: - Single Disc Clutches with Solid Mass Flywheel upgrades, smooth organic heavy duty clutches, performance clutches in single and dual friction single disc clutches, dual friction dual disc and triple disc competition clutches from street use to drag race and sled pulling competition SFI Approved clutches. Clutch repair kits and flywheels, input shaft upgrade, replacement hydraulics with adjustable master cylinder.