1991 GMC Pick-up Truck Clutch Kit - Performance Upgrade R3500 - 7.4L Engine - Up To Prod. Date 01/31/1991 - w/ 12 in. Clutch - w/ Cerametallic Disc guaranteed to replace your current 1991 GMC Pick-up Truck Clutch Kit - Performance Upgrade R3500 - 7.4L Engine - Up To Prod. Date 01/31/1991 - w/ 12 in. Clutch - w/ Cerametallic Disc. 1991 GMC Pick-up Truck Clutch Kit - Performance Upgrade comes new OEM 1991 GMC Pick-up Truck Clutch Kit - Performance Upgrade aftermarket new 1991 GMC Pick-up Truck Clutch Kit - Performance Upgrade of remanufactured 1991 GMC Pick-up Truck Clutch Kit - Performance Upgrade R3500 - 7.4L Engine - Up To Prod. Date 01/31/1991 - w/ 12 in. Clutch - w/ Cerametallic Disc.