We can supply full range of clutch assembly for Mack truck: a cover 14" (D600), 15.5" (D800) 2 disks 7/8/9 SPRINGS, 3/4/6 BRAKE PADS 1 center plate 1 central bearing The products has been sold world wildly and the performance was well accepted by all customers. Every piece of DURABLE clutch against strict quality test and control, perfect heat treatment before delivery, all the material is selected under strict screening, the steel and diaphragm spring purchased from Baosteel, other parts all from well known Manufactures.