GM Service Manual Online
For 1990-2009 cars only

The driven member is the clutch driven plate. The clutch driven plate has a splined hub. The splined hub slides lengthwise along the splines of the input shaft. The splined hub drives the input shaft through these same splines. The driving and driven members are held together with spring pressure. This pressure is exerted by a diaphragm spring in the clutch pressure plate.