If you're going to haul a large trailer, may I gently suggest an XL or Suburban? The added length in the wheelbase helps a lot with sway. When I was shopping a few years ago, the price premium for a Denali with the 6.2 was only about $1K. It's a much better motor for towing a heavier camper, in my opinion. I've towed with both and the 6.2 wins, hands-down.
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