nobody knows if there was any chance in fender wells or tire fitment availability?
19-21 Should have the Exact same fender wells... i feel like a quick look at Replacement fender wells will yield your answer, but i'm looking at aftermarket Wheel wells for when my truck arrives and They are listed as
19-2022 fitment
A Lot of those Tire stores Have "interesting" anecdotes on fitment restrictions and i think you found one of them.
NOW the air ride might not help you in the 35's department... that might be a legitimate problem, and idea how much clearance you had on the last two trucks? take The limiteds' ride height lowest setting and compare apples to apples, if it can lower MORE than the clearance you previously had, then fair shake that will be an issue