Fitment: For F-450/F-550 (2005 and Newer) Vehicle Type:Light Duty Trucks/Bus/Motorhome Specification: Oe Part Number: 400-423, 400423 Compatible Vehicle: Light Duty Trucks Bus/Motorhome Wheel Size:19.5 in. Bolt Holes:10 Quantity: 2 Balancers Per Set Description: .