The question on the Dodge rating is a good one, it depends on what website you look at and or Dealer you call. From the research I have done and people I called they have told me 12,000 to 15,000 which seams very, very high to me, I am guessing it is total combined weight even through the dealer told me that was maximum towing weight for the 06 Dodge 2500 Heavy duty Hemi 5.7. Mega Cab SLT. As for hitch weight that depends on the class rating of your hitch, I was told that with a distribution hitch added you take a significant amount of weight off the tongue and distribute across both axles. I went to a large RV show in Spokane Washington a little over a month ago. One of the Rockwood dealers had a big sign up that said 1/2 ton pullable on a Rockwood 8319ss. I talked to him about it as I never believe a word a salesman tells me. After our talk he admitted that he wouldn't go with anything less then a 3/4 ton but did say that a "properly equipped," 1/2 ton would do it. So what is properly equipped???? As for the performance upgrades on my truck. Shop around online. I believe I got my cold Air intake from JC Whitney for about $220.00 on sale with promo codes! and my Bully Dog GT was $335.00. Have they or will they help??? The intake gained about 1+mpg and some definite horsepower. It also required ear protection in the cab when you hit the gas or go up a hill. So probably not worth it. The Bully Dog seems to be worth it so far. Better idle and throttle response, better HP, better mpg but probably from the driving instructor program that beeps at you every time you drive wrong! I wouldn’t put any money into your truck until you know you can pull it and then only to make life a little better! The Escalade did look cool pulling the Jayco, but it was more of a status thing, probably the same reason I went with a Rockwood SS vs a Keystone Bullet! this will be his 3rd year with that Tow Vehicle. I too do not want to upgrade my truck as I really like it and it’s paid off!