Originally Posted by icnivad
It sounds like you've got a solution in place, but if you haven't figured this out yet, the ribs are actually shaped like a U with little wings coming off the top. It's not tube, which is why drilling through the middle was so easy, as you didn't actually go through the rib, just the sheet metal.
That's what I was afraid of, so there are now two 10" L-brackets on the front and two on the back that are bolted all the way through the bus on the longitudinal roof support. If that sucker comes off now, it means the whole roof has peeled off and I'm either doing a "Thelma & Louise" off the road, or am going the extreme route of flying to OZ.