How much stress and load is placed on the panhard bar bushings compared to those of say the LCA's,Front Control Arms or the sway bars.The reason I ask is I just pulled the panhard bar off my '83 Z28 and the are only the small stress cracks but the rubber is still very firm(not hard from age).The only bushings on the car that have shown wear are those on the endlinks.If it weren't for the fact I was upgrading the factory bar I think I would have left it as is.