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Old 07-14-2017, 11:09 AM   #1
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OhioMark's Avatar
Join Date: Mar 2013
Location: United states of america
Posts: 1,464
Replacing 7-way harness on the trailer

Our harness got pinched and developed a short on our last trip. I repaired it on the road but home now and looking at replacing the harness and cable.

Anyone done this on a Grand Reserve travel trailer?

Before I get into it I want to know if I only need to go to the junction box in the front of the trailer or need to go all the way to the back into the main circuit box to connect.

I'm a DIYer but not thrilled about messing with the underbelly shroud.

My rule of thumb on working on either truck or trailer is if I have to be on my back for more than 10 minutes I pay someone else to do that work!

2017 Ford F350 Super Duty 6.7 King Ranch Crew
2016 Crossroads Sunset Trail Grand Reserve 32BH
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Old 07-14-2017, 04:28 PM   #2
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Join Date: Oct 2015
Location: ca
Posts: 518
Just replace it to the junction box unless you pulled the wiring out from the junction box to the trailer
2015 Redwood 36RL pushing a 2015 Denali DRW
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