While at the GNR I was talking to another person about inside dual valve stem extenders. I told him that I couldn't find any for the Ford 2016 22.5 aluminum rims. Our conversation was overheard by a Winnebago employee. He said that the 2017 chassis leave the factory with valve extenders. Sure enough the 2017 display models had valve extenders.
I went to Winnebago parts to order a set but they couldn't locate the parts in their system. Next I tried Lichtsinn R V. They found the extenders but they had to order them. I had them shipped to my home and they were here when we arrived home on Saturday.
The rubber stabilizer came from www.MidWestWheel.com
Rubber stabilizer part number 002225
The valve stem extenders came from Winnebago.
Extension/Valve Stem -Live - 7.7"
Winnebago Part Number 095012-09-000
Safe travels. JD