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These two tasks, buying the pads and jacking up the car, comprise the majority of your brake repair. If you still are not sure that brake repair is necessary, you can eyeball the pads through the brake housing view port before removing the wheel. Once you determine that brake repair is necessary, then remove the wheel and the lower bolt on the brake housing and swing the unit up and away from the wheel. You are now ready to begin actual brake repair. The brake pads will be visible with the housing out of the way.