Removal And Installation; Service Operations; Ignition Switch Replacement; Instrument Cluster - Chevrolet 10 Series 1968 Service Manual

IGNITION SWITCH REPLACEMENT

1. Raise hood and disconnect battery ground cable from
battery.
2. Remove lock cylinder by positioning switch in " O FF"
position and inserting wire in small hole in cylinder
face. Push in on wire to depress plunger and con­
tinue to turn key counter-clockwise until lock cylin­
der can be removed.
3. Remove the metal ignition switch nut.
4. Pull the ignition switch out from under the dash and
remove the wiring connector.
5. To remove the "theft resistant" connector, the switch
must be out from under the dash as outlined in Step
4. Using a screw driver unsnap the locking tangs on
the connector from their position on the switch. Un­
plug the connector.
6. Snap the connector into place on a new ignition
switch.
7. Place the switch into position from behind the dash
and install the metal ignition switch nut.
8. Install the lock cylinder.
9. Install the battery cable to the battery and lower the
hood.

INSTRUMENT CLUSTER

REMOVAL AND INSTALLATION

10-30 Conventional Cab Models (Fig. 18)
1. Disconnect battery ground cable.

SERVICE OPERATIONS

F ig . 18-Instrument Cluster Assembly - Conventional Cab
ELECTRICAL—BODY AND CHASSIS 12-13
2. Remove choke control knob.
3. Remove windshield wiper knob and bezel nut.
4. Remove light switch rod and bezel.
5. Disconnect speedometer cable and chassis wiring
harness connector at rear of instrument panel.
6. Protect mast jacket with suitable covering.
7. Remove cluster retaining screws from face of as­
sembly and remove cluster assembly from console.
8. To install, reverse removal procedure.
40-60 Conventional Cab Models (Fig. 18)
1. Disconnect battery ground cable.
2. Remove choke control knob and bezels.
3. Remove windshield wiper knob and bezel nut.
4. Remove light switch rod and bezel.
5. Disconnect speedometer cable and chassis wiring
harness connector at rear of instrument panel.
6. Disconnect air pressure and oil pressure gauge feed
pipes.
7. Loosen mast jacket upper support clamp bolts and
lower mast jacket to prevent interference with lower
edge of instrument cluster.
CA U TIO N :
Protect mast jacket with suitable
covering.
8. Remove cluster retaining screws from face of as­
sembly and remove cluster assembly from console.
9. To install, reverse removal procedure.
CHEVROLET TRUCK SERVICE MANUAL