we have the 2010 Quad Cab Ram Hemi and tow the Eagle HT 23.5
Although the dry weight is 5900 lbs with a 1160 lbs pin, ( scales now say 6800 lbs and pin 1300) we are a bit overweight but the truck does great. No problem up hill or downhills and breaking is fine too.
We picked this specific 5th wheel to keep the weight down as 95% of people we talk to (not here, but the "other" forum) told us 1/2 ton trucks couldn't do it. If we had to do it again, we'd get a slightly bigger one. An extra 1000 lbs would still be no problem for this truck.
I was really nervous when we first got it but the truck tows great!!!
To answer your question, the Ram can certainly do it but keep in mind, the payload is low on them and be prepared to be over your RAWR.
We put timbrens and 10 ply tires on the truck.