If you've got wood rot, longer bolts are only a temporary fix. The factory offered a better fix utilizing 4bolts per bracket instead of the original 2. Can you show a picture of the area you're describing?
On the older units, pre-2003 ish... There is wood filler on the underside, bottom portion of the roofs. On my 2002 model, there is a u shape aluminum channel.
But with the amount of flexing, bounce if you will, while in travel mode down the highway, the screws will over time work there way out. Some of that can be adjusted out with the torsion bar adjustment as well as the hold down clamp at the black release handle screws. There is a small amount of adjustment there.
While traveling one season, I found the screws at one point pulling out at the roof hold down as you relate. With no other remedy while traveling, I used larger diameter and longer screws and that eventually pulled out and gouged out the holes as well.
Others here should be able to provide a repair solution utilizing four lag screws, and longer bracket plate as well. Moves the stress point and redistributes the pull down over a much longer area.
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rvcycleguy
TM-2002 3124KB
TV-2003 Toyota Tundra V8 4.7L. Fact. Tow Pkg, air bags
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