Jerry,I have 2" to spare at the opening but can only get 10, in before a beam hangs flush. I haven,t decided which to tell my wife first, we need a new house with a taller garage, or we need a bigger trailer now that we have the truck.;)
I switched to E 10 ply rated LT tires 4 years ago. I never had a sway problem with my Reese Dual cam hitch but I got a great deal on the tires. I did notice they are a lot more stable especially driving thru the gorge on Hwy 84. There are always ruts...