Libra New 12 x 2 mobile home trailer brake drum kit 8-222-04-22021k New 12 x 2 mobile home trailer brake drum kit, replace Dexter drum 8-222-04 only. bolt circle: 5 on 9.4"; 2 x bearing races installed Kit include: L68149 inner cone bearing and LM67048 outer cone bearing, 10-41 nylon grease seal, dust cap 5 x rim clamps ref #: 008-222-04, 08-314-04. Fits 12 x 2 mobile home electric brakes