[twinmill28]

Deuces up to 2007 are rated for towing up to 6600 pounds--and they can and will pull it, I've been doing it for the past two years. They are happier on flat roads, but we've pulled the travel trailer thru the mountains going to Canada and the deuce will do it, you just have to slow down.
As it turns out, our trailer's axles aren't heavy duty and didn't like being towed fast; we destroyed both axles going to Canada when I first learned that I could go 65-70 with it, but light weight axles aren't built to go that fast that long (it has to do with all the twisty roads and flexing with a loaded trailer, whooda thunk).
To say the deuce is not made for towing is an incorrect statement. We bought ours knowing we'd be towing, so I made sure it had the air suspension, and it's worked out extremely well. I love the flexibility of being able to raise/lower the a$s of the truck when loading/unloading the trailer, especially when not on flat/level ground. That's not to mention how nice the ride is when fully loaded. I would tow any car behind the deuce with the right trailer/gear as long as I am within the weight rating. It's not exactly the perfect truck for the job, but it will still do the job very comfortably. The deuce is extremely comfortable to drive long distance when loaded up.
Make sure you've got a good solid stabilizer set-up for the trailer as well. Don't get cheap and buy the dangly chain set-up, pay extra and get the good solid bars from the hitch to the trailer---it's very well worth it.