If you are driving your Buick and the brakes pull to one side or the other as the pedal is pressed, there could be a problem with the caliper. Within the Buick brake caliper is a set of pistons, which use the hydraulic pressure created by the master cylinder to force the brake pads down onto the brake disc. The friction created by the brake pads brings the vehicle to a stop. If the Buick brake caliper is sticking, it could be due to a buildup of rust and other debris in the moving parts, which prevents the unit from operating effectively. The pull to the side could also be a sign of uneven hydraulic pressure between the left and right sides of the vehicle. The pistons in the Buick brake caliper have various seals that keep the hydraulic fluid pressurized. As the seals age, they may begin to leak, and the system will not have adequate force to stop the brake disc efficiently. When it becomes necessary to replace the Buick brake caliper, you will find the correct version for most vehicles in our large online catalog, at a large savings over the price of the part from the dealership. Our version conforms to all of the same specifications, and it has a full warranty from the manufacturer that ensures its quality. Installation will be a simple swap of the old part with the new Buick brake caliper, followed by the appropriate procedure for bleeding the air from the brake system. The Buick brake caliper can be ordered in a matter of minutes through our secure web site, or by phone, with a toll-free call to our sales department.