1984 GMC Pick-up Truck Clutch Kit - Performance Upgrade C2500 - 6.2L Engine - DIESEL - w/ 12 in. Clutch - w/ Standard Duty guaranteed to replace your current 1984 GMC Pick-up Truck Clutch Kit - Performance Upgrade C2500 - 6.2L Engine - DIESEL - w/ 12 in. Clutch - w/ Standard Duty. 1984 GMC Pick-up Truck Clutch Kit - Performance Upgrade comes new OEM 1984 GMC Pick-up Truck Clutch Kit - Performance Upgrade aftermarket new 1984 GMC Pick-up Truck Clutch Kit - Performance Upgrade of remanufactured 1984 GMC Pick-up Truck Clutch Kit - Performance Upgrade C2500 - 6.2L Engine - DIESEL - w/ 12 in. Clutch - w/ Standard Duty.