I sent several emails to RAM customer service asking this same question in 2021, before i bought my current 2022 Power Wagon via a factory order. RAM customer service 100% refused to give me a straight answer and instructed me that only the dealer would have this information regarding the wheels as they have all the in-depth knowledge about these trucks......not them. My response to this crap was that I pointed out to them via email that YOU folks actually manufactured the truck, not the bloody dealer? Moving on, it gets worse, way worse......An good example of one of my local RAM dealers depth of knowledge about the vehicles they actually sell was when i visited the dealership in person to ask about pricing on a factory order for a 2022 Power Wagon, sadly this is how it went: The sales manager got on his computer screen, (The same basic website that we would use to look at RAM truck model choices), then promptly informed me that you cannot order a Power Wagon as a stand alone truck, you have to first order a RAM Big Horn model and then modify it via the accessories and options available on the checkboxes on the RAM website to turn it into a Power Wagon? This bloke was the head sales manager of a RAM dealership and did not even know that the Power Wagon was a stand alone model .....I could not make this stuff up.
When i did cold call RAM dealers soon after this experience to get the best price on a factory order, what do you think was the first question I asked them? Yep you guessed it: Do you know what a Power Wagon is?
For the record Dennis Dillion in Idaho were the most responsive to a factory order at the time so thats where i bought my truck, well worth the 800 mile round trip from my house to pick it up.......(and they didn't even force me order a Big Horn first)
The only straight honest answer i ever received regarding the wheel material type was from this forum, thank you again......