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Chevy Truck Diagrams
PLEASE NOTE - We do not guarantee accruacy of these diagrams.  Please use with caution.
 (PLEASE DO NOT SUBMIT REQUESTS!)
Wiring & Vacuum Diagrams
A/C & Heating
 
 1967-72                                            A/C Vacuum Diagram (w/Two-Port Vacuum Switch)
 1974-75 Square Body                    A/C Vacuum Diagram
 1976-82 Square Body                    A/C Vacuum Diagram
 1983-91 Square Body                    A/C Vacuum Diagram v1
 1983-91 Square Body                    A/C Vacuum Diagram v2