View 0 Photos View 0 Videos 1999 Eaton DSS40 Front Differential for a Kenworth W900L $2,118 USD (USED) Eaton DSS40 Ratio: 3.70 Side Gear Splines: 41 W/ Locker: YES Cast#: - ConditionUsedFits To Make(s)KenworthFits To Model(s)W900LStock Number25932289 MLS Number14142023CategoryDifferentials, Front Last Updated2/13/2026 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info