You are offerding on a power steering conversion kit for a 56, 57, or 58 Pontiac. This gear kit replaces a stock manual or stock power steering gear. It includes a rebuilt Saginaw 605 power steering gear, pitman arm, steering ball, 3/4-30 x 3/4DD universal joint, steering column connector, column end bearing and collar, column to firewall flange, o-ring hose ends, and hardware. This gear bolts in the stock position using the existing bolt holes.