What's the procedure for testing these? I have a feeling mine are bad. When driving over small potholes (they're not always avoidable), I notice a definite "clunk". I'm sure other suspension components are up to snuff. I have Bilstein struts and the stut mount is fastened with a 22 mm nut that gets threaded onto the top of the strut assembly, which also has a 6 mm hex-head mortice. Could it be that the 22 mm nut is not torqued enough - and, just what is the value these get torqued to?