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It is my useless opinion that any Doubletree/DRV fiver running on 16" wheels is going to have trouble some day. These units should all have 17.5" tires/wheels, then the capacity is there for the trailer.
If a 17.5" blows/fails, then that to me is just bad luck. At 4805lbs/tire, it gives 19220 for capacity on 4 tires. With about +20% pin weight on almost any DRV, that gives a gross capacity of around 23000 for the unit. At that point, you should be in triple-axle territory.
I had 17.5s on my '05 (changed them soon after purchase in '07 based on advice from another former Suites owner (sigo 'n suites, remember him?). Since then, have never had a tire failure in possibly 100k miles of towing. Currently have GYs on the '15 I just got--hoping they work well as the Michelins/Coopers/Sailuns I have used.
Joe
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2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired
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