The Ram will pull anything that Hartland makes.
But the 2008 is not rated to pull as heavy as other makes.
Again if you look at the weights and measure of all the heartland models they are rated to carry around 3K to 4K of cargo so judge the weights by the shipping weights and compare to the other makes to load the trailer.
Every Sundance model seam to be made for the 3/4 ton market, Elkridge seam to be the same shipping weight for under 34ft. Around here most Sundances in the parks are towed by 1/2 tons, I think its foulish, but the trucks pull them ok.
We chose the Big Country model because of the washing machine and cargo space. Not every cargo is heavy but it can add weight fast. We are very satisfied with our choice and its been a dream to tow the unit.
One wise older man told me one time when I bought my 1st trailer, "The length of the trailer usualy don't add much weight because its usualy empty space inside because all the furniture and appliaces are similar in any size. The amount of cargo will not change if you want to carry something there will be space found".
So on his advice I bought a 24ft 5th wheel to be pulled by a Ford 1/4 ton Ranger. And the BC has been the same thing its the model we liked and we are glad we did the choice.
I see so many couples buy to suit the truck and in a few years regret and have to upgrade.