73-87chevytrucks.com

Technical Forum (Read Only) => Chassis Electrical and Ignition => Topic started by: Captkaos on April 08, 2009, 11:58:24 PM

Title: Complete 73-87 Wiring Diagrams
Post by: Captkaos on April 08, 2009, 11:58:24 PM
Here are the complete wiring harness schematics for the 73-87 series pickups.  These are HUGE jpgs so you may want to save them to your hard drive and print the pages you need.

73-76 diagrams
73-76 cab Interior (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/73-76_cab_inter.jpg)
73-76 chassis rear Lighting (chassis/cab and Stepside (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/73-76_chass_rr_light.jpg)
73-76 chassis rear Lighting (Fleetside and Suburban (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/73-76_chass_rr_light_fleet_burb.jpg)
73-76 engine and Front Lighting (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/73-76_eng_frt_light.jpg)
73-76 Firewall Junction (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/73-76_firewall_junct.jpg)
73-76 Instrument Cluster (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/73-76_instrument.jpg)

77-80
77-80 250 I6 Engine wiring and front lighting (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/77-80_250_I6_eng_frt_light.jpg)
77-80 292 I6 and BBC Engine wiring (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/77-80_292_I6_BBC_eng_frt_light.jpg)
77-80 SBC Engine wiring (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/77-80_SBC_eng.jpg)
77-80 Cab Interior (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/77-80_cab_inter.jpg)
77-80 Chassis and Rear Lighting (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/77-80_chass_rr_light.jpg)
77-80 Intrument Panel Page 1 (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/77-80_instrument_pg1.jpg)
77-80 Intrument Panel Page 2 (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/77-80_instrument_pg2.jpg)

81-87
81-87 Cab Interior Page 1 (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/81-87_cab_inter_pg1.jpg)
81-87 Cab Interior Page 2 (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/81-87_cab_inter_pg2.jpg)
81-87 Chassis and rear Lighting (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/81-87_chass_rr_light.jpg)
81-87 Front Lighting (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/81-87_frt_light.jpg)
81-87 I6 Engine Compartment (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/81-87_I6_engine.jpg)
81-87 V8 Engine Compartment (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/81-87_V8_engine.jpg)
81-87 Instrument Panel Page 1 (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/81-87_instrument_pg1.jpg)
81-87 Instrument Panel Page 2 (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/81-87_instrument_pg2.jpg)
81-87 computer control wiring (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/81-87_computer_control_wiring.jpg)

power windows wiring (http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/powerwindows.gif)



Link to 1973-87(91) Factory GM Service and Wiring Manuals (http://forum.73-87chevytrucks.com/smforum/index.php?topic=30115.0)