Looking at running 17's for winter on my 06 Ram 1500 4x4. With all the dealer options and after-market wheels available over the years, how can I ensure a particular wheel will fit my truck if the seller still has rubber on it. (other than trying it on) I've noticed some rims have their size stamped on, but not all do and not all in the same spot. What size tire and wheel combination would you recommend for my truck which has 275/60/20 with 3.92 gearing?

Thanks