Originally Posted by punt66
i lost the ground on both my boat trailer and equipment trailer hahah. They are just 4 prong plugs with no ground.
That can't be, it has to have a ground. I know the white wire is the ground on the wiring for my trailer and mine is a 4 prong flat. I've sprayed both the ball and the receiver tube on the hitch and have never had a problem with my lights.