(Used) 1985 Mack RD686SX, TANDEM CUTOFF- Make: Mack, Model: CRDP112-113, Ratio: 5.02, Capacity: 22,000 Lbs, Hub Bolts: 10, 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