View 0 Photos View 0 Videos 2000 Eaton RD404 Rear Differential for a Western Star 5800 $1,028 USD (USED) Eaton RD404 Ratio: 4.11 Side Gear Splines: 41 W/ Locker: YES Cast#: - ConditionUsedFits To Make(s)Western StarFits To Model(s)5800Stock Number25908076 MLS Number14020947CategoryDifferentials, Rear Last Updated12/7/2025 LocationKansas City, MO, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info