South Bend Clutch SDD3250-5 Street Dual Disc Clutch fits stock 1.250 input shaft. This Heavy Duty Street Dual Disc clutch is very streetable, for a stock truck that does some towing, has a few mods or with some heavier horsepower or torque demands has reason to require the additional heavy duty strength this street clutch is made to handle. Diaphragm style pressure plate with light pedal pressure, 12 ceramic buttons per side of disc, 550-750 hp with ductile flywheel - not SFI approved.FITS ALL 5 SPEEDS