so if i fabbed up some of my own supports to bolt in the factory spot, it could hold me?

YEP,check with ARBSeth about the rail system they use for those rooftop tents for the KJ.

Currently I am running a Yakima Basketcase. My wife found this at a garage sale for 10 bucks and was practically brand new. It works fine for now but I think I'll be outgrowing it soon. It's alittle on the small side. Not bad for 10 bucks, though.

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2005 4x4 Sport
Yakima Low Riders
Hidden Hitch
MOPAR tow hooks
RL Skink Step Sliders
Magnaflow
3/4 armored
235/70/16 Grabber AT 2
and a lot of little stuff...