K 3500 Truck 4WD V8-305 5.0L (1988)
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Disconnect electrical connectors.
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Install new switch.
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Reconnect electrical connectors.
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Install clamp "C" around brake pedal arm.
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Slide switch upward with slide tabs "D" engaged in brake pedal bracket slot and upper clamp "B" aligned with pedal hub.
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Reconnect negative battery cable.
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Adjust switch. Refer to "Switch Adjustment".