Front harness interchange?'s - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**MJN** · 01-31-2004, 06:53 PM

Is there a difference in the harness that runs to your headlights and over the radiator for A/C and Non A/C trucks? Mine is ready for a replacement and was wondering if I could use one of mine out of a non A/C truck.

**pound41** · 01-31-2004, 11:00 PM

according to LMC Catalog the ony difference between an a/c versus non is the a/c wiring harness. Also guages or non guages hope that helps

**MJN** · 02-01-2004, 12:17 AM

The only one I'm interested in is the basic front clip harness that runs the blinkers and headlights and goes over the top of the radiator and has the two little inline fuses in it that are for the ammeter.

**GMCPaul** · 02-02-2004, 03:41 AM

There is a difference in front lamp harnesses, gauge equipped trucks use a different harness than non-gauge, then they vary by year with 67 being 1 year specific, and 68 being 1 year only, 69-72 are the same, and then of course there is a difference between a Chevy forward lamp harness & a GMC harness due to quad lighting on the GMC headlights. But the A/C harness has no effect on the forward lamp harness so long as both trucks match on the above possible differences your good to go!!!
GMCPaul

01-31-2004, 06:53 PM	#1
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 2,967	Front harness interchange?'s Is there a difference in the harness that runs to your headlights and over the radiator for A/C and Non A/C trucks? Mine is ready for a replacement and was wondering if I could use one of mine out of a non A/C truck. __________________ '51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com

02-02-2004, 03:41 AM	#4
GMCPaul Senior Member Join Date: Mar 2000 Location: Rockville,In. USA Posts: 3,718	There is a difference in front lamp harnesses, gauge equipped trucks use a different harness than non-gauge, then they vary by year with 67 being 1 year specific, and 68 being 1 year only, 69-72 are the same, and then of course there is a difference between a Chevy forward lamp harness & a GMC harness due to quad lighting on the GMC headlights. But the A/C harness has no effect on the forward lamp harness so long as both trucks match on the above possible differences your good to go!!! GMCPaul __________________ Secure Online Catalog for-GMCPauls Truck Parts Email- GMCPAULS@GMAIL.COM

01-31-2004, 11:00 PM	#2
pound41 Registered User Join Date: Dec 2002 Location: Northern Virginia Posts: 1,269	according to LMC Catalog the ony difference between an a/c versus non is the a/c wiring harness. Also guages or non guages hope that helps

02-01-2004, 12:17 AM	#3
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 2,967	The only one I'm interested in is the basic front clip harness that runs the blinkers and headlights and goes over the top of the radiator and has the two little inline fuses in it that are for the ammeter.



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