[vipermanden]

I took an 8 foot straight 2 x 4 and screwed in the measuring tape to the bottom edge, and put a 6 foot level on top of the 2 x 4" and took an average reading on all 4 spots on top of each A/C unit, while it was hooked to the truck, and just in case went with the largest reading, and we are at 13" 5". We ran into a bridge in Nashville, Arkansas that said 13' 6" and my wife got out on the side of the hill, and i went about 1 mph and she watched and said we had about 1" of clearance as i went under this bridge!!