In regards "hazy450" mentioned in the above link:
Yep, ya gotta love those that do whatever they want, without concern for themselves much less others around them.
Without even addressing the issue of safety. I'll bet that hazy450 didn't ask his insurance company about what effect towing well over limit might have on his insurance coverage, or his lawyer about what liability he might be opening himself and family to if he had an accident while towing in that condition. And, after all that, there is the issue, in his case of being in the military, of UCMJ Section 134 and what they would do when the civil peeps were done with him. As was mentioned in the replies, in picking up a speeding ticket along the way, he wasn't showing the greatest respect for the law, much less common sense.
Also add in, hazy450 knew that he had to lie to the people at U-Haul
by telling them that he had a different vehicle than he actually had as he must have known that they wouldn't rent that trailer to him if they knew it's towing limit was so low. Who knows, he may even have had to go to several U-Haul
dealers before he pulled that one off.....
Bottom Line: Just because you can do something, doesn't mean you should do something or as Mom said, "If hazy450 jumped off the bridge, would you also jump off the bridge?".
And what does the owners manual for your specific vehicle say about towing limits?