I have wondered the same thing. Last time I crawled under I notice some cracking but they did not appear compressed like yours. ( for lack of a better description ... perhaps because mine are still under a load.) I installed mine in 10/09 but they only have about 15,000 mi. on then. Wet bolts and bushings seem to be good as new. Even in this condition, I am sure they are still much better than OEM. Always good to find another nut who crawls under their rigs periodically. Travel safely, Hank
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Hank & Lynn
2007 Cougar 290RKS, E-Z Flex, 16" XPS RIBs ( SOLD .. Gonna miss her ... looking for new 5r)
2004.5 Dodge 2500 QC, LB, 5.9HO, WestTach gauges, Ride-Rite
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