The Mack CRD93 rear-rear differential, part number RBT-CRD93-3.87 or CRD93R387, carries a 3.87 axle ratio and is sold on a core exchange basis. Before ordering, have your axle configuration details ready: pinion spline type (fine or coarse), upper torque rod mounting style (one tapered hole or two bolt holes), transverse rod mount configuration (four 3/4-bolt pattern at the rear of the differential housing), and your axle shaft spline count. These details ensure the correct unit ships for your specific axle build. Call Pro Gear and Transmission to confirm proper fit for your application.
A refundable core charge of $1,500.00 applies to this item and will be collected at checkout. The core charge is refunded upon receipt of your returned core, subject to its condition; customer is responsible for return shipping. Call us at (877) 776-4600 for details.
Features
3.87 axle ratio
Mack CRD93 rear-rear differential application
Part number RBT-CRD93-3.87 or CRD93R387
Sold on core exchange basis - core charges apply
Confirm pinion spline type (fine or coarse) before ordering
Verify axle spline count and torque rod mount configuration prior to purchase
Tech Specs
- Ratio: 3.87