Where does the Grand Marquis come into this equation ? Are you planning on towing it ?
If its just the trailer with less than 1500# gvw there should be no issue as long as your brakes are in good shape.
No, not planning to tow the Grand Marquis. I just wondered what the law says, if it is legal to use the 2000 lbs trailer that I am normally using behind the Grand Marquis also on the Dart, which only can tow 1500 lbs.
The Grand Marquis I sort of am not too fond of, and at some point will have to go.