8 0 Rockwell Rear Differential Contact for price Airliner Air Ride Suspension Cutoff; Single Axle; Rockwell RS 21-145; 3.9 Ratio. Call or message with any questions or visit our website. ConditionUsedStock Number1246 MLS Number9953956CategoryDifferentials, Rear Last Updated12/14/2022 LocationSpringville, PA, US Sold BySummit Core Supply (844) 329-___ SHOWNUMBERCall Seller Email Seller Save More Info