You might want to contact Borg Equipment and Supply in Tujunga , CA. Yourtireshopsupply.com, they make dually valve extenders for the inner and outer wheels. They are true valves, not just screw on extensions.
I just had them installed on my 2016 Greyhawk with the not so wonderful Jayco Chinese aluminum wheels, an $1800 waste of money. The valves are outstanding but not cheap, about 150 plus your tire shop install fees.
Let Borg figure out what you need, it can be confusing.
Hope this helps.
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2023 Jayco 22CF SE
2023 Jeep Wrangler Sport Unlimited
Blue Ox Baseplate/Tow bar
Demco Stay n Play
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