I needed to replace the rear drum brakes on a Toyota Yaris 07g. Use these pads on the frame rails to keep the tail in the air. This brake job was for a family member so they let me extend the job to 3 days (encountered a few issues along the way). The car sat on these pads for 3 days in a row. After the car was removed from the jack, the pads held their shape. The frame rails were not damaged either.