Did you personally install OME t-bars with no extra weight over the front end? There have been countless threads here on MUD about people who installed OME t-bars on a stock LC and complained about how stiff and jarring the ride was. The IronMan bars are even worse as they are larger in diameter than the OME bars. For this reason I purposely left my bars sitting in the garage until last night. I now have a ARB deluxe bumper, 12k winch, Hella driving lights, Hi-Lift on the bumper, and two Sears Platinum batteries under the hood. The stock bars were not up to the task any longer.
In fact the OME bars and springs on my LC came from a gentlemen here on MUD who installed them on his bone stock LC and then pulled them off 2 weeks later. He said it was entirely too stiff and uncomfortable to drive. I didn't argue, he sold me the springs and bars for $250 shipped!