Trailer Brake Assemblies 12 x 2 inch Drum Hydraulic Trailer Backing Plate 5200 lb, 6000 lb, 7000 lb Hydraulic Brake Assemblies Free Backing 12" Trailer Drum Brakes Manual Adjustment The shoe dimensions on 12 inch hydraulic drum brakes are 12x 2 and mount to the trailer's 5 hole standard brake flange for both 6 lug and 8 lug brake drum hubs. All 6000 lbs axle trailer brakes work with 6 lug 12 brake drum hubs. These free backing hydraulic brakes are ideal for use on a boat or snowmobile trailer. Full range of serviceable backing plate spare parts are available for 12" hydraulic free backing brakes. There are various types of back plates such as silver spray, dacromet and galvanized available for customers selection. Features l Designed for use with surge-type trailer brake actuators. l Dacromet or Galvanized coated are durable enough for saltwater applications. l Complete assembly readily available for 5-bolt flange mounting. l Periodic manual adjustment required. l No mounting bolts or nuts included. l Free-backing design lets you reverse without trailer brakes being activated l This brakes exchange with most name brand hydraulic brakes, such as Dexter, Lippert (LCI), and AL-KO etc. Specifications Dimension: 12 inch x 2 inch Axle Capability: 5200 lbs, 6000 lbs, 7000 lbs Axle (14.5", 15", 16" and 16.5"Wheel) Mounting Flange Bolt Pattern: 5 bolt Brake Fit: Left Hand / Driver Side / LH, Right Hand / Passenger Side / RH Product Composition 12 x 2" Riveted Free Backing Brake Shoe Kit x 1 Silver spray, Dacromet or Galvanized Back Plate x 1 Single-Servo Aluminum Wheel Cylinder x 1 Stainless Steel Springs x 2