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  1. #1

    Default All on high/low beams?

    Hi all
    I am interested in doing a all on hi/low beam light mod on a 1997 gmc sierra...does anyone have an idea about how to do this mod?.....i have heard of using a diode to link the 85 pin on the hi beam relay to the 85 pin on the low beam relay !!
    Any thoughts or opinions out there?

  2. #2
    Sr. Apprentice
    Join Date
    Aug 2007
    Indianapolis Area


    Hope this doesn't get me in trouble, but it has been discussed at length over here:
    1992 GMC C1500 SLE

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