0 0 Eaton RS401 Rear Differential $1,250 USD Remanufactured Eaton RS401 rear, rear differential assembly. 6.50 ratio. 1 Year warranty for parts or Swap out for another unit. $500 For Labor. Towing not covered ConditionRemanufacturedRear End6.50 ratioFits To Make(s)EATONFits To Model(s)RS401Stock NumberBP TRS RS401/6.50 MLS Number14050713CategoryDifferentials, Rear Last Updated12/18/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info