I tow a 7000 lb boat/trailer combo behind my 99 f250 with my 4300 lb arctic fox 811 on the back of my truck.

Did a search but could find any posts specific to my concerns.
So, my Vanguard camper is approximately 3,000 lbs loaded on my 2002 F250 superduty crew cab. E rated Michelins .SRW Standard rear axle rating plus air bags and we have put about 14,000 miles on this set up with zero problems.
That said, I would like to trailer my car to an event . The trailer weighs 1500 . The car weighs 2500 . I have confidence in the power of my 7.3 diesel and tranny. What I don't know is how much weight is on the hitch and therefore the rear axle of my rig. I should also mention that with my 1965 Corvair Corsa  facing forward, most of the weight(rear engine placement) is placed on or behind the dual 3500 lb axles . Don't know if this actually works to relieve some weight from the hitch.

So, anyone out there in the TC world done any towing that approximates 4000 lbs behind your TC?

Appreciate any thoughts , experience or information on this.

Thanks.

Im a proud owner of an 03 F250 with a Powerjoke 6.0.  You may have the mighty Cummins engine but the rest of the truck is nothing to beat your chest about.

Here is a video to show you. (You can see my Torque lifts in the back)

http://www.youtube.com/watch?v=yh4puTT-4Rs