I have 410's,,running a 26' tall tire.That was the problem,it was to much gear.But the place I bought the 28/12.5/15's from let me exchange them for a smaller size.I got the 11.5/28/15. In the book they are actually 8.6 inches wide,and 27.6 inches high.That gives me a little more then an inch to play with,so they mite fit now.And the hight is just about 28,so hopefully I am good to go

I also got some march under drive pullies while I was there

Im getting my stock h-pipe put back on tomorrow,then Im hitting the track Friday night.I'LL let you know how it turns out!!