255-85-16 might be able to clear each other OK on a '02. those rims have a dipper offset than the trucks that came with 215s, stock. Will depend on the manufacturer.
My truck came with 215s, and have 235s on there, without spacers. They are about 1" apart with 2500# on the bed of the truck. Aired up to 75-80#. No visible tire sidewall contact.