1955-58 Cameo and GMC Suburban Carrier Bedside Vertical Supports. Prevents the long fiberglass sides from flexing when a person is leaning against them. Attaches at the back in front of the bed sides. The center steel padded wedge pushes against the fiberglass to give a more solid panel. Bonus: We have them powder coated, semi-gloss black to protect from rust in the wheelwell. A pad on the wedge is attached where they contact the fiberglass sides for protection. Also included are the pan head bolts, washers, and nuts for each end to make attachment quick and easy. One fits on each side of the wheel well. Your original metal bedsides have the recieving holes from the factory. Made in Mid-America USA. Set of 4.