ranchworld
'06 158 2500 Passenger
Blooper Buildout 158 T1N Maxxfan install
Once the hole was cut out I clamped the flange to the roof and used it as a drill guide. I did the four corners first, bolting each one as I went then drilled the rest of the holes. I had already drilled the plywood backer frame. I deburred and painted the holes.
The view from inside. Notice the wider sections where the dimples had been.
I used butyl tape under the flange and 1" x 1/8" aluminum bar on top with stainless bolts and fender washers inside and out. That's the butyl squeeze out beside the flange. I scraped that off before I coated the whole flange assembly with self leveling sealant.
From outside.
From inside. I would make the inside frame larger if I did it again, it is only that narrow because that was the size scrap I had...
Once the hole was cut out I clamped the flange to the roof and used it as a drill guide. I did the four corners first, bolting each one as I went then drilled the rest of the holes. I had already drilled the plywood backer frame. I deburred and painted the holes.
The view from inside. Notice the wider sections where the dimples had been.
I used butyl tape under the flange and 1" x 1/8" aluminum bar on top with stainless bolts and fender washers inside and out. That's the butyl squeeze out beside the flange. I scraped that off before I coated the whole flange assembly with self leveling sealant.
From outside.
From inside. I would make the inside frame larger if I did it again, it is only that narrow because that was the size scrap I had...
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