I just replaced mine. Sharpened up a steel putty knife to help remove the caulk, worked great. Don't worry about digging the putty out of the old phillips head screws, a good screwdriver will dig in with some good pressure and back them out. Toss the old ones. I used butyl tape to seat the skylight and used the Winnebago self levelling silicone along the edges and to fully cover the steel corner tabs and screws. I just wish I had ordered new hold down brackets, 4 in my case. They were a bit rusty, but they are now fully entombed in white goop.
The old skylight must have had 3 layers of different self levelling goop applied at different times and it still leaked. Looked like the factory stuff was silicone, with rubber roof repair stuff on top. I was surprised the factory didn't seat it in butyl first.
Tips in previous threads warned about over-tightening the screws, I heeded the warnings all all turned out well. Also after scraping all the old goop off off the roof, I wiped it down with automotive grease and wax remover, like you would before painting. I didn't wany any of MY goop lifting off.
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Ole and Anne Anderson, Highland, Michigan
'02 Adventurer 32V, Ford F-53, ours since 4/08,Hankooks, Konis, SeeLevel, CHF
'84 CJ-7 , 5.3 Chevy, 3" lift, 33's, Detroit Locker, Fiberglas tub, winch, hi-lift
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