View 6 Photos View 0 Videos Rockwell RS21230 Rear Differential Contact for price Rockwell RS21-230 Rear Differential; Two Speed; 4.88 Ratio; 3200D1564. Call or message with any quesitons. ConditionUsedRear End4.88 ratioStock Number1420 MLS Number10147396CategoryDifferentials, Rear Last Updated12/13/2022 LocationSpringville, PA, US Sold BySummit Core Supply (844) 329-___ SHOWNUMBERCall Seller Email Seller Save More Info