Mike I just bought a 2010 armada platinum. I did the math and tow a 31 ft TT. The weight is about 7700lbs loaded and I have no trouble. The airbags suspension on the rear is awesome on leveling The load. I drove through the Catskill and Adirondack mtns. Here in NYS. I had no trouble pulling up the mtns. But with only a 5 SPD transmission you do have higher revs. But if you look ahead on the road and help the trany pre choose the gear( I do this) you will keep the revs down. The computer has to make up for lost speed and pushes a higher rev. If you lightly double tap the gas peddle going into the hills the transmission will change gears earlier and keep you in optimal ranges that are not excessively high. J love that Armada and my wife thinks she is king S@#t driving it too. It is really big...really big. Expect not better than 12 mpg around town and 9-10 when hauling
Hope this helps