Anyy diff's on dash harnesses? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jmanz69 · 02-02-2003, 10:15 AM

I have 3 underdash harnesses, and I was wndering if there is any diff between the trucks that had AC and the ones without in these harnesses. I know all of the ones I have are for the gauge dash.

Andy4639 · 02-02-2003, 12:08 PM

Yes there is a difference. The wire harness forr the AC will have a 40 amp fuse at the fuse block with the wires running to the ac in the dash with the two little light bulbs. If my memory is right I think it's a orange wire, it will have the relay, compressor clutch, and anti dieseling wires also.
Hope this helps.

jmanz69 · 02-02-2003, 12:14 PM

so the one I have pictured is probably for a non-AC truck then. I will ahve to look closer and see. Anyone have a pic of an AC dash harness?

02-02-2003, 10:15 AM	#1
jmanz69 Careful, they attack... Join Date: Aug 2001 Location: Waterford, MI, USA Posts: 1,107	Anyy diff's on dash harnesses? I have 3 underdash harnesses, and I was wndering if there is any diff between the trucks that had AC and the ones without in these harnesses. I know all of the ones I have are for the gauge dash. Attached Images

02-02-2003, 12:08 PM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Differences Yes there is a difference. The wire harness forr the AC will have a 40 amp fuse at the fuse block with the wires running to the ac in the dash with the two little light bulbs. If my memory is right I think it's a orange wire, it will have the relay, compressor clutch, and anti dieseling wires also. Hope this helps. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

02-02-2003, 12:14 PM	#3
jmanz69 Careful, they attack... Join Date: Aug 2001 Location: Waterford, MI, USA Posts: 1,107	so the one I have pictured is probably for a non-AC truck then. I will ahve to look closer and see. Anyone have a pic of an AC dash harness?



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