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So there I was replacing the O.E clearance and marker lights on my Roo with new, ultra cool looking LED units. I pulled off the first light on the side and it looked like they made the hole for the wires with a ball peen hammer. Next side light, not only did it look like the drill was not really turning when the hole was made, but despite all the sealer around the light housing, there was still a suprising amount of water behind the base. What was really worrying about this was that not only could the water could freely get into the trailer, but also get between the fiberglass skin and the wood backing. Any one see potential delamination/mildew? Fortunately, this has not happend yet. I smeared urethane around the edge of the hole before installing the new light (more urethane around the light), and I'm going to crawl into the trailer to back up the wire holes with some spray in foam. I think the water was coming in from around the lens, then building up high enough to get in behind the housing through the bulb socket.
Tow Vehicle: '92 F350, Crew Cab, 4X4, Cummins 5.9 24 Valve, 6spd.Driver:Clint, Navigator:Melanie, Entertainment: 3 Boys (24,22,20) and now girlfriends too, 1 dog (Great Pyrenees/Akbash cross). Mission Statement: Just another adventure! Towed vehicle:2009 Roo 19 with lots of mods!