Heard good things about the Nitto Crosstek. I think they're pretty new so you never know.

 

i just went from Bridgestone Duellers AT revo's to Michelin Ltx ms2's love these tires quiet and smooth with great grip 70K rating, not taking anything away from the Duellers they were a great tire and rode nice but i only got 31k out of them

 

The Pro Grade are the ones for Heavy/Super Duty trucks, can't find a for sure on the ply difference, but basically, heavier ply, little bit different compound for chip resistance, and of course you can run higher PSI and heaver loads than the regular Silent Armors.

 

Wanted to update. Ended up getting Cooper Discoverer ATR's. They are the precursor to the AT3's. Very nice ride, quiet and great traction. Hoping to get the full 50k or more out of them. Got them installed for less than 720 out the door.