7 pin trailer connector vibrating loose

Protector wrote:
I have my male 7 pin mounted in the side of the bed of my truck,I am towing a 5th wheel and the plug keeps vibrating loose next thing I have no trailer breaks or signals the cover latches down over female plug holding it in place but some how it still works its way loose?? anyone had similar problem? any remedies to keep this from happening.

All you need to do is change your trailer side plug to a flat blade style. The twin blade style on your trailer is not fully inserting. It is only making point contact! Pollack makes a good replacement connector,
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