The Eaton Spicer RS404 rear differential carrier with a 3.90 ratio is listed under part number RS404R390 or RS404R390. This differential 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 unit. The core is subject to manufacturer core policy unless otherwise agreed in writing. Pro Gear and Transmission is a direct source for Eaton Spicer drivetrain components. Call us to confirm proper fitment for your truck 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
Eaton Spicer rear differential carrier
3.90 gear ratio
Part number RS404 or RS404R390
Sold on core exchange basis
Core charge applies - refundable in whole or in part upon return and inspection
Core subject to manufacturer core policy unless otherwise stated in writing
Tech Specs
- Eaton Spicer Rear Differential Carrier
- Part Number: RS404 or RS404R390
- Gear Ratio: 3.90
