The Mack CRD93 rear-rear differential with a 5.55 ratio is sold under part number RBT-CRD93-555 or CRD93R555 and is available on a core exchange basis through Pro Gear and Transmission. Before ordering, have your axle configuration details ready: pinion spline type (fine or coarse), upper torque rod mount style (single tapered hole or two bolt holes), whether your differential housing uses four bolts at the rear for a transverse rod mount, and your axle shaft spline count. These details are required to ensure the correct unit is matched to your application. Call us to confirm proper fit before placing your order.

• Ratio: 5.55
• Part Number: RBT-CRD93-555 or CRD93R555
• Sale Type: Core Exchange

This unit is sold on a core exchange basis. Core charges apply and may be refunded in whole or in part following delivery and inspection of the returned core. Core returns are subject to the manufacturer core policy unless otherwise agreed in writing. Contact Pro Gear and Transmission for a freight quote prior to ordering.