Your TT will max out on weight around 7000lbs. You tires are 205/75/14 according to your profile info. They have a max load rating of 1760lbs each. That's 7040lbs for all for. Your TT has less than 1000lbs for cargo per the brochure. 925lbs to be exact. Add a battery and propane and you're likely around 800lbs for CCC in the TT. What all that means is if you load the TT like most do then you'll be at or maybe even over the TT' payload rating. Running 14" tires maxed out near 65 mph is a recipe for disaster.
1st thing I'd do is get everything weighed to see exactly where you stand. Not sure what the trucks payload rating is. Rams are typically a little lower than GM and Ford. If you have a Laramie then your payload capacity will be even lower. Again, get it all weighed to see where you stand for load limits.