I recently saw an unusual lock at Princess Auto. It was a locking pin to hold the ball platform in the hitch receiver, but with a long cable loop attached. It was billed as a new product, and I wasn't sure what it was for, but perhaps the intention is to loop the cable through the trailer frame (maybe not so easy when you don't have an A-frame tongue) to lock the trailer to the tow vehicle.
1979 Boler B1700RGH, pulled by 2004 Toyota Sienna LE 2WD
Information is good. Lack of information is not so good, but misinformation is much worse. Check facts, and apply common sense liberally.
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