Chevrolet Full-size Cars 1968-1978 Repair Guide
Inside Rear View Mirror
Disconnect the negative battery cable.
If the mirror is mounted on the upper windshield moulding, remove the retaining screws. If equipped with a map light, pull the mirror downward and disconnect the light electrical connector. Remove the mirror.
If the mirror is attached to the windshield, remove the mounting screw and remove the mirror from the vehicle.
Installation is the reverse of the service removal procedure.