Tahoe vs Yukon Denali

Thanks everyone for the great information. We ended up going with a Yukon Denali over the Tahoe for extra power considering the trailer plus family weight. The XL options available in our area were all 5.3 unless it was a Denali version. The only denali xl i could find was $6k more than the same non XL version of the same year and mileage. We confirmed that the codes option codes GU6 and Z82 were present on the RPO sticker and had a third party inspect the powertrain prior to purchasing. Will give some feedback after the first trip!