They make adapters to go between. I find the old 4 prong to be the most common on the trailers I have used/rented. My truck came with both a 7pin and a 4 pin jack already installed, but it also has a stock trailer brake control.
On Mon, Aug 6, 2018 at 9:15 AM, Chuck McCown <ch...@wbmfg.com> wrote: > I have a bunch of trailers and a bunch of trucks. I even have a semi > truck. > Is there a wiring orientation that is more used than the others? > I have found so many different socket and plug diagrams that I find it > amazing that it has never been standardized. > > I am going to build a converter so I can plug the semi tractor into some > of my other trailers that the the flat blade connectors. > It will take an electric brake controller in the semi and some kind of > diode box to combine some of the lines. Those are available on the retail > market. > > But the number of connections and the wiring of the connections seems all > over the map. > > Opinions please. > > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > >
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