13-tooth clutch bell created from HUDY steel, precision-machined on a special gear unit. Strategically lightened without having to sacrifice energy or durability to lessen rotating mass. The 3x ball-bearing design originated to obtain more exact and wobble-free procedure. Less play for the clutch bell increases performance and much longer lifespan for bearings and clutch bell. Lightweight design with machined openings really helps to reduce heat build-up inside clutch. Fits simply 4-shoe clutch #358400.