Compatible with GM® 12 in. Clutch Kit Super-Truck Diaphragm 1-1/8 in 10-Spline. This product is not created or sold by GM®.; Hays Super Truck clutch kits are great replacements for original equipment units. Engineered and built as a matched assembly each kit will provide exceptional performance durability and long term dependability. This kit fits Chevy and GMC truck applications with 12 in clutch and 1-1/8 in 10 spline input shaft. The pressure plate is a diaphragm style and the clutch disk is organic sprung hub. Comes complete with the throw out bearing and alignment tool.;