Any towing difference between 8' or 8.5' width?

If you can successfully drag around an 8' wide trailer, then a 102" won't be a problem either. I have four trailers I regularly pull, three of them are 102" and the fourth is about 86". The only time I notice the wider trailers are for instance on a narrow two lane county road, of which we have a lot of around here, when meeting oncoming. I generally have to put the right side trailer wheels right at the edge of the pavement until traffic has passed.