It's a unibody, any real flexing without some good beefed up sub frame supports added in will cause some body wrinkles or glass breakage on pretty much any unibody vehicle. I know on my Trans Am, I pucker when I launch at the track now and I won't be going back til I get my sub frames rails welded on. 1.4x 60' times on torque arms are insane for body twist with no subframes.
Either way, first thing you should do if you are crawling I would think is to get some frame stiffeners/sub frame rails. I'm new to Jeeps, but it's the same principle with all unibodies.
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Last edited by Modsquad; 01-22-2008 at 10:06 PM.