GM 1987380 Switch Asm,Headlamp

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Disconnect the negative battery cable and on 1975-79 models with air conditioning, remove the left A/C duct or tube. Pull the switch knob to the last notch and depress the spring loaded latch button on top of the switch while pulling the knob and rod out of the switch. On 1978 and later models, depress the retainer tab behind the knob and remove the knob. Remove the left I/P trim plate by grasping plate and careful pull straight out. Remove the screws securing the headlight switch in place. Disconnect the multiple electrical harness from the switch, and remove. For 1984-87 models, remove left hand I/P trim cover by grasping the trim cover on both sides and pull straight out. Remove the three 7mm retainer screws and pull the switch straight out. To install, push the switch straight in being careful not to damage prongs on new switch, tighten screws, connect battery cable and check operation.