tfraley33 Posted April 10, 2013 Share Posted April 10, 2013 Can anyone tell me where a deadhead wire #143 is located in a new GU713 with a 4000 series trans? I need to hook it up to let the pto interface with the TCM. Called a couple mack dealers, parker, allison and mack hotline, still havent got an answer. Is it even necessary? Any help would be appreciated. Quote Link to comment https://www.bigmacktrucks.com/topic/30774-new-gu713-pto-problems/ Share on other sites More sharing options...
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