1 0 Meritor-Rockwell RS17-220 Rear Differential for a 1991 Ford F700 $1,150 USD RS17-220 DIFFERENTIAL 6.17/ 8.57 RATIO GOOD TAKEOUT., Ratio: 617/857 ConditionUsedFits To Make(s)FordFits To Model(s)F700Will Fit Year(s)1991Stock Number91625-4 MLS Number13977600CategoryDifferentials, Rear Last Updated11/12/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info