My last Jayco, which was a 2008 JayFeather, came with the chrome wheels with the circle holes in them. In 18 months they were rusted all to heck.
I took it in for warranty work and raised it as an issue, and Jayco agreed to replace them with the same wheels...which also would probably have rusted the same way. I asked them how much to upgrade to aluminum wheels, they said $35 each- so I ponied up the $140 for the aluminum wheels. It was well worth it...give it a shot at the dealer. All they can say is no....
2015 F250 XLT FX4 Crew 6.2L
2013 Jayco Jay Flight 28BHBE