Towing capacity is important, also check the "payload" of your TV on the doorjam sticker...many of these TV's can "tow" 10-12K pounds, but the 'payload" is not very high; RAM is one of those trucks typically. If your really thinking of a 30 or 33, suggest you look at a 3/4-1T diesel TV; it will certainly provide the power and capability for that size AS. Many folks I see here get by with a 1/2T like the F150 Echoboost, and it's a great truck; I owned one with my 25's. Remember, payload includes your passengers, the gear you plan to carry in the back, and the tongue weight of your AS...know and understand that prior to making your decision is my advice.
But, I like the extra power, capability, payload, and size of the 3/4T for my 28'. Good luck with your choice; study the older posts on the Forum on TV's...there is more data here along with "opinions" then you may want to read, but it's a great place to start. Then, drive a few vehicles, look at their spec ratings on the door jam; don't go by sales guy or their brocures...the actual vehicle is the bible...
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Empty Nesters; Gypsies on the road!
2017 28' Twin Flying Cloud
2017 F250 King Ranch, 4X4, 6.7L, Blue-Ox WDH
Summer-Star Valley Ranch RV Resort (Thayne, WY); Winter-Sun City (Georgetown,TX)