First, take out the park brake cable from the drum brake, using the right or left set of guidelines as required. Then, remove the Wheel Cylinder and the rear Axle Shaft, and then take out the backing plate bolts to take out the backing plate. Start by attaching the new backing plate to the rear axle housing, next install the backing plate bolts, and tighten them to 135 nm (100 ft. Lbs.). You should then put back the Wheel Cylinder and the rear Axle Shaft, and join the park brake cable by using the proper steps for its left or right side.