10 inch x 2.25 inch Left Hand Hydraulic Brake Assembly - Easy installation and interchangeability are just two features that rate this hydraulic brake assembly among the best in the industry. This assembly will interchange with most major brands of axles, without modifying the axle or the mounting flange. They will also interchange with most Atwood, Axletek and Dexter hydraulic brake assemblies. For: Left Hand side. Hub Pattern: 3 inch x 4-holes on 10 inch brakes. 3,500 lb rated axle capacity. Black painted finish in color. All kits are individually boxed, 1 kit per package.