Boat trailer brakes locking up.
I just brought a new boat trailer home, and when backing UP the driveway, the surge brakes prevent me from backing at all. Supposidely you put that little thingy in the hitch, but there is nothing to ...
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They are electric. The TV back-up lights must be hooked to the trailer harness to unlock the brakes, otherwise, a metal shim must be used in the slot to override the brakes.
