Hays street 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 Buick, Chevy and Pontiac applications with 11 in clutch and 1-1/8 in 26 spline input shaft. The pressure plate is a diaphragm style. The clutch disk is organic sprung hub. Comes complete with the throw out bearing and alignment tool.