Hays Classic Clutch Kit - Chevy/Pontiac/Buick 85-110. This kit fits Buick, Chevy and Pontiac applications with 11 in clutch and 1-1/8 in 10 spline input shaft. The pressure plate is diaphragm style, clutch disk is organic sprung hub.
Hays 85-103 Classic Clutch Kit-Street/Strip-10.5 in Diameter
85-103 Hays Classic Clutch Kit - Street/Strip-GM
Hays 91-1007 Hays Street 450 Clutch Kit - GM