No. No such gremlin that I am aware of. If your concerned about damaging headers, you have to adjust the torsion bars by cranking the adjusters up. You should have a competent alignment shop that has experience with older mopars do this though because if you turn them up too far you will cause serious drivability issues, and you have to align it after making any adjustments to the torsion bars anyway. There is a proper ride height recommended for each mopar body style, that uses torsion bars, but I do know that you can turn them up slightly more than that recommendation to help prevent header damage without adversely affecting the handling or alignment. The reason I know this is I have done it to 3 of my cars to accommodate headers. I have Heddman B body headers in my 73 Dart you see pictured here and have never even had them scrape the ground slightly. Not saying it will guarantee they wont hit, but would decrease the chances.