The Mack CRDPC92 front differential with air power divider carries a 4.42 ratio and is sold under part number CRDPC92 or CRDPC92R442. Before placing your order, have the following details ready: fine or coarse spline input and output shafts, one tapered ball stud hole or two-bolt dog-bone style upper torque rod, whether your differential housing has four 3/4" bolt holes in the rear for a transverse rod mounting plate (the plate mounts around the rear through-shaft), and your axle spline count. Getting these details right up front prevents a wrong-part situation. Call Pro Gear and Transmission to confirm proper fit for your application.

• Ratio: 4.42

This unit is sold on an exchange basis. A core charge applies at the time of purchase and may be refunded in whole or in part following return delivery and inspection of your core. Core returns are subject to the manufacturer's core acceptance policy. Contact Pro Gear and Transmission for details on the core return process and to obtain a freight quote before ordering.