16*6. 5 (94-98ish)? 8 on 6. 5" You can use a LT2657516E on these with no averse tire wear (crowning) in my experience. The 285's may or may not wear well, plus their not load range E (usually).
I've also run the 25585 Dunlops (LR D) looked cool but didn't like the "squirm" and shorter than Michelin tire life. 'Course they cost a bit less too.
Hope this helps
Andy