Ignition Switch – Octagon Key - ISO-355
GM in dash ignition switch coded with 2 octagon keys, retaining nut, terminals and connectors. Switch housing measures 3 1/8” long and 2 5/8” wide. Dash hole size is 7/8″.
This GM switch is not exclusive to GM vehicles; it can be mounted and used for any in dash application for Chevrolet, Ford, Chrysler, Jeep, etc.