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We would have to know the brand of light bar, and it would also be extremely helpful to see a picture of the light bar, especially the ends where any kind of brackets would attach. Also, it makes a difference where you want to install it: on the bumper, on a brush guard, above your windshield, on a roof rack, etc.
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2008 Liberty Sport 4x4 Automatic
Jeepin By Al 4" Lift Kit
BFG KO2’s 245/75R16
Full MOPAR skid plates
Rock Lizard Skink Super Sliders
AtTheHelm Front Recovery System & Roof RackM116A3 Trailer build thread: viewtopic.php?f=72&t=77997