Is all I need is a few opinions. The trailer I have now is a 8x12 and the one that I want to buy is a 8x18 but the problem is that the two dealers around here that sell h&h trailers only have 8.5x18 foot trailers on hand. Is there going to be much of a difference between and 8 and 8.5. My trailer now the wheel wells are just wider than the truck and the box of the trailer is the same width as my truck, which I like because a few roads around here are only as wide as my truck so one wheel casually goes over the white line which I cant help otherwise the other wheel would be over the curb. My question is would I even know the difference between the widths?