The World American line of clutches are the result of precision engineering and state-of- the-art manufacturing designed to deliver maximum value. All World American clutches can be trusted to provide quality performance and a long service life. World American stands behind this with a 1 year/100,000 mile warranty. World American clutches are 100% new product, inside and out! No core charges, Pre-adjusted, Dual grease fittings, Ceramic VSR buttons, Color-coded on cover springs to easily identify plate load. Always maintain proper clutch adjustment and when driving start in the lowest gear.