1985 Mack CRDPC112, Truck Delivery, Complete Axle-Front Rears, Fits to: Mack RD686SX, (Used) 1985 Mack RD686SX, COMPLETE FRONT REAR TANDEM- Make: Mack, Model: CRDPC112, Ratio: 5.02, Capacity: 22,000 Lbs, Hub Bolts: 6, Brake Type: Drum, Serial Number: TBD, For more information about this item, give us a call.We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Ratio 5.02, Serial# TBD, Truck Year 1985 1M2P139C2FA012806