AJ Garrard

Just bought a 2022 Trail boss. I am new and apologize now! I am trying to sift through all the threads, could get a definite answer. I am choosing NOT to add a level kit or 2” kit. I am staying stock as I need my auto 4x4 working. I just need to know how big of a nitro Ridge grappler I can run with no lift or kits with no fender rub at all. I was looking at 275/70/18 on factory wheel or 285/65/18 on factory wheel. I traded in my JKu rubicon with 37’s and will not Offroad anymore. Any help and pictures preferred. I know people are running 34-35’s, but that to me is pushing it. And lastly, can I protect the speedometer??? Is it hard to do. Truck isn’t here yet, but want to order tires before it arrives. Thanks all!!!