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Old 12-09-2018, 05:42 AM   #7
GMCPaul
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Join Date: Mar 2000
Location: Rockville,In. USA
Posts: 3,718
Re: 67 wiring harness question

I'm currently out of town at my parents so I can't look at my GMC wiring diagrams to tell you all the differences but the 72 fuse block connection isn't the same as the earlier 67-68 fuse block so that portion of harness would be a issue.
Paul Sr @ GMCPauls
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