a clutch assembly for a vehicle transmission includes a housing defined by a wall having an annular configuration circumscribing a clutch axis . the wall extends between an open end and a floor . the floor extends inwardly from the wall toward the clutch axis . a plurality of splines formed in the wall and each is spaced from the open end of the housing . a snap ring retains clutch plates in the housing . the open end of the wall is deformed inwardly toward the clutch axis defining a retainer for retaining the snap ring within the housing .