View 3 Photos View 0 Videos 1998 Eaton 15040S Rear Differential for a GMC C6500 $725 USD (USED) Eaton 15040S Ratio: 4.33 Side Gear Splines: 34 W/ Locker: NO Cast#: 210316 ConditionUsedFits To Make(s)GMCFits To Model(s)C6500Stock Number25652159 MLS Number12882221CategoryDifferentials, Rear Last Updated2/8/2026 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info