I see talk about 20" tires. the ram I am looking at comes with LT285/60R20E OWL tires. are these as good for towing as 18" both are E rated, but I do see a shorter sidewall
20" tires on current F350 and on previous F350 both towing 35' 5er. No problems at all. I like the 20" wheels appearance. But yes the tires are more expensive.