Were getting the 2020 XLR 37TSX13. I have a 2019 F-350 CCLB SRW 4x4 6.7. It's well under my max tow weight and my max GCVWR. However, the tongue weight is fairly close to my trucks max payload. Doesn't leave me a lot of room. With some weight in the garage this should help to take some of that weight off the tongue and counterbalance it. Then it should be fine. Still well under my other limits. My truck tow weight is 20,400 and GCVWR is 28,700.