One New 12" X 2" Trailer Brake Drum 6 on 5.5" B.C. for 5200-6000 Lbs Axle - 22003 One New 12 Bolt pattern: 6 on 5.5 Requires 25580 inner cone bearing and 15123 outer cone bearing (not included) Works on 2.125' or 2.25 Ref part #. 008-201, 42656