7 0 2007 Detroit RS21.0-4 Rear Differential for a Sterling L8513 $1,050 USD (USED) Detroit RS21.0-4 Ratio: 5.22 Side Gear Splines: 41 W/ Locker: NO Cast#: R6813511005 ConditionUsedFits To Make(s)SterlingFits To Model(s)L8513Stock Number25452631 MLS Number12151909CategoryDifferentials, Rear Last Updated8/29/2024 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info