Thanks! They definitely are close on the front.... But I have fixed the rubbing up there. The back isn't a problem at all.
I have hauled my dads racecar on a flat deck trailer (approx 4500 pounds) but I have the airlift 1000 bags in the back. So it doesn't sag at all. Here's a thread on that: http://www.ramforumz.com/showthread.php?t=142443