Chevrolet Light Duty Truck 1978 Service Manual page 45

Fig. 1 A - 1 0 -- D is t r ib u to r D u c ts -G M o d e ls
2. Remove the two resistor mounting screws and
4. To install a new switch, reverse Steps 1-3 above.
remove the resistor.
RESISTOR
3. To install a new resistor, reverse Steps 1 and 2 above.
Replacement (Figs. 1A-6 and 1A-8)
1. Disconnect the wiring harness at the resistor
connector.