Hi,
I run that tire and am on my 2 set already (40,000mls and 35,000mls present, I change pretty early to obtain a good thread)
It is the best tire I had on the RAM 3500 Mega SRW.
Tires I can compare are the OEM Firestone Transforce, Michelin Defender and Continental Allterain.
We towed app 22.000mls through the country on it.
We are thanks to the Mega at ~6900 to 7100 rear axle weight.
I was considering to go to a 295/60 R20 to get a slightly better weight rating.
But on the front they would rub a little and you should do a leveling kit at least.
Once unhitched the Discoverer XLT is the most comfy tire you can experience on the truck.
Oh, and the look
You won't go wrong.
Get them from Discounttire and you can always exchange them.
They have a $70 Mail In Rabat at the moment I think.
Make sure you get them road force balanced and in the best case stand next to them to be sure.
Mike