It is important not to start work without first taking that into consideration the given precautions, and avoidances. Someone should start by applying the parking brake, placing chocks in front of the wheels and lifting the rear part of the car, then placing jack stands and finally, take of the appropriate rear wheel. To reduce chances of fluid spillage turn the master cylinder reservoir cap and preferably cover it with cellophane or use a brake hose clamp or similar instrument to close any flexible hose that is normally found on the reservoir. Clean the surrounding of the fitting and undo the brake hose fitting nut and then pull out the brake pads. Remove the caliper from the flexible hose and get off from the vehicle car. For installation procedure , screw the caliper fully onto the flexible hose fitting and insert the brake pads then tighten the nut at the brake line fitting. After the removal of a clamp or cellophane is done, drain the hydraulic system, it is only needed to drain the rear brake which was worked on if care was taken not to have a loss of brake fluid. Last but not least; fix the wheel, adjust the vehicle to the normal ground level, tighten the bolts of the wheels to the recommended torque and look at the brake fluid level.