danield , take a little advice from a Ram service director for 2 different Chrysler Dodge Jeep Ram dealerships. Go to WWW.RAM.COM/TOWING
and see what your truck is rated for. If memory serves me right I think its 10k. That Hemi has all the power you need and the 65RFE is a GREAT transmission that rarely fails.
Scratch the website, I just went and looked. Your truck, depending on a few other variables is rated for a minimum of 9k and a max of 10,400k.
Have you looked at a 27RR with the 11' garage? That's what we just bought due to the slide out and most importantly, the 11' deep garage. Max weight of trailer and cargo is right at 7900 which is perfect for your RAM. I went to buy the 26RR and the garage was too shallow, measured the 27RR at 11' deep and found the price to be almost identical and it then became a no brainer.
Don't listen to half the crap you read about towing with your truck. Don't use ANY trans fluid other than Mopar ATF+4 and change your engine oil every 5000 miles and that truck will do what you want for a long time to come!
I'm pulling our 27RR with a 15' RAM 2500 Laramie 4wd w/a 6.7 and a 68RFE which is massive overkill for that trailer. If the car business goes to crap and I have to drive a sensible truck again, I have NO worries about a Hemi 1500 doing the job just fine.