Hey guys, thanks again for all the replies and input. Let me give you some more info to help clarify some things....

I previously had a Lincoln Navigator (b4 the VX) with a towing capacity of 6,500 lbs and a maxium tongue load of 500 lbs. I was able to carry my bike on that hitch with no problems. In fact, we made several trips to NC, NJ, NY, and FL. Never had any unfortunate accidents. But then I don't know how that hitch was attached to the vehicle since it was factory installed.

I do know for a fact that tongue capacity is always extremely less than tow capacity. Because all of the weight of the item in tow is placed on the tongue itself rather than on the wheels of a trailer. Hince the 6,500 lbs the Navi was able to pull with a trailer verses the 500 lbs that it was able to carry with a rack.

The rack in question is the MotoTote Sportsbike Carrier...


http://www.mototote.com

And you guys were correct in the fact that the rack extends about 3 feet from the back of the truck to allow for mounting and the bike fairings. So there's an extreme amount of leverage and twisting on the hitch.

Anymore sugguestions or comments would be greatly appreciated.