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1/1/2021 Update: US Mail is still running behind but not as bad as mid December. If you need your diagram(s) in 5-7 days please select UPS at checkout. We have negotiated a flat rate of $9.95 per shipment. (Residential & Extended Area surcharges are included) East of the Mississippi should receive items in 3-4 business days or less, rest of continental US in 6-7  business days at most. US Mail options still available, but delivery will take longer (days or weeks) as they work through their backlog of earlier shipments and deal with COVID staffing issues.

GMC

  • ClassicCarWiring Generic Sample

    1955 GMC Series 2 Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1956 GMC Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1957 GMC Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1958 GMC Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1959 GMC Truck Color Wiring Diagram

    Complete basic truck included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1960 GMC Truck Color Wiring Diagram

    Complete basic truck included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1961 GMC Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1962 GMC Truck Color Wiring Diagram

    Complete basic truck included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1963 GMC 1000 1500 2500 Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1965 GMC C K Series Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1966 GMC C K Series Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1967 GMC C K Series Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1968 GMC C K Series Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1969 GMC C K Series Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1970 71 GMC C K Series Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options
  • ClassicCarWiring Generic Sample

    1972 GMC C K Series Truck Color Wiring Diagram

    Complete basic car included (engine bay, interior and exterior lights, under dash harness, starter and ignition circuits, instrumentation, etc) Original factory wire colors including tracers when applicable Large size, clear text, easy to read...

    $17.95
    Choose Options