I have a 2021 Bighorn 1500 with the Off Road Group package. I'm looking at aftermarket wheels and found some I like, they are 18X9 with a +12mm offset. I've seen these wheels on several sites, and they show that they should fit my truck, but when I called one of the places to ask about fitment (I know nothing about offset), they wanted to check with the manufacturer, they got back and said these would not fit on my truck, that with an 18" wheel it would hit the caliper, and told me I would need to look at 20's. My factory wheels are 18", what do you guys think? Will that size fit my truck? I'd like to stay with 18" wheels if at all possible.