Cargo light questions

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by divorced, Sep 25, 2005.

  1. divorced

    divorced 3/4 ton status

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    1972 C10

    The light on back of the cab.

    With the switch in one position both contacts have voltage and will light my cheapo test light fairly bright. Then I flip the switch the other way and only one contact will light the light, and not nearly as bright as before.

    Is this normal?
    Anyone have a schematic?
    What is the part number for the bulb?

    Thanks.
     

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