ll brakes require adjustments over time. With manual brakes you have to adjust each individually. With Ultra-Fab Self-Adjusting Heavy-Duty brakes, the shoes are continually aligned for maximum braking every time. Saving you the time and/or money of manual alignments. Ultra-Fab brakes are simply easier to install and offer greater control than hydraulic brakes. Uses standard brake controllers already installed on most trucks. Friction material is durable to extend lifespan and improve braking power. Also, E-coated to resist rusting. A dust shield and adjuster plugs are provided to keep debris out of sensitive areas. Pads are bonded directly to brake shoes to ensure maximum stopping power and further extend brake life. Also reduces the chances of cracking. Brake Assembly- Self Adjusting - 12-1/4" x 3-3/8" 10,000 lb. Capacity, Left Hand / Driver’s Side