(Used) 2000 Mack RD688SX, COMPLETE FRONT REAR TANDEM- Make: Mack, Front Axles: CRDPC112, Ratio: 4.64 Hub Bolts: 6 Brake Type: Drum, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921