The DS404 Differential Carrier Assembly, part number RBT-DS404390 or DS404390, is a 404-series carrier built to a 3.90 gear ratio. The DS404 platform is a common heavy-duty rear differential carrier, and the 3.90 ratio suits typical long-haul and vocational drive axle configurations. This unit is sold on an exchange basis through Pro Gear and Transmission. Core charges apply and are subject to inspection upon return; refunds are determined by the manufacturer's core policy. Call us to confirm this carrier matches your axle model and ratio requirements before ordering.
A refundable core charge of $750.00 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
404-series differential carrier assembly
Part number RBT-DS404390 or DS404390
3.90 gear ratio
Sold on exchange basis - core charges apply
Core refund determined by manufacturer's core policy upon inspection
Call Pro Gear and Transmission to verify fitment for your specific axle application
Tech Specs
- Ratio: 3.90
