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Home >> GMC >> 1978 >> Forward Control 5.7L Eng VIN L, Automatic Trans, Trans Mfr CD 475/M40 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Switches, Gauges & Instrument Panels >> Removal & Installation >> Printed Circuits >> All Models

All Models

  1. Remove instrument cluster, all cluster light assemblies and printed circuit retaining screws.
  2. Remove fuel, temperature and ammeter terminal nuts holding printed circuit to cluster cover. Remove printed circuit from rear of instrument cluster.
  3. To install, reverse removal procedure while noting that retaining screws serve as ground for printed circuit and must be properly reinstalled to provide proper ground connection.