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Do Electric Brakes Need to Share Ground Wire?

Question:

I am adding electric brakes to my single axle trailer and have a wiring question. What is the best way to splice in the wire from one wheel to the opposite wheel. I have looked at diagrams and they just show the wire running across the axle then joining the main line running up the trailer to the junction box. Do I go ahead and ground at each wheel then join the power lines together or do I also splice the ground together?

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Expert Reply:

To wire your electric brakes you will want to run 10 gauge wire # 10-1-1 to one of the brakes and run it to the other brake, using butt connectors like # 05732-2 to connect them. The grounds will not be spliced, each brake assembly should have its own ground; please see the accompanying photo which is from our help article on adding electric drum brakes which I have linked for you.

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Kyle S

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