Is it possible to make an omelette without breaking eggs? If it were me (I installed the OEM bar), I would removed the factory rail and drill a hole in the foot and in the roof underneath. I would then drill a hole in the plastic that covers the mounting bolts and silicone it all up. This way your hole is covered by the rail and is out of the direct elements and no one will say you're ghetto.
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2006 CRD
http://www.UtahPowderCoatings.com/ http://www.gorecon.com/ I'm kind of a big deal.
RL rear bumper, ARB front bumper, Mile Marker winch, Power Tank, Skids by Mopar & Skid Row, RL Super Skink Sliders, 235/85R16 MTR, Air Flow Snorkel, DTT, 4.10 gears, Frankenlift II, Katskin leather, JL Audio stereo, Rosen video.