Scott Laycock Posted January 21, 2020 Share Posted January 21, 2020 Hey guys, recently installed k shock coilovers in my 2011 is350, since day 1 they have been knocking like crazy, everything is tight and the springs have preload, is there anything else I need to change or replace to make them not knock? It’s doing my head in, please help me Quote Link to comment Share on other sites More sharing options...
Scott Laycock Posted January 22, 2020 Author Share Posted January 22, 2020 Na they were brand new out of the box, just not sure why they would be knocking even if they are lower quality, maybe I’ve just wasted $900 Quote Link to comment Share on other sites More sharing options...
bazzle Posted January 26, 2020 Share Posted January 26, 2020 How are the mounts at both ends? Get someone to rock car side to side whilst you hold hand over mounts. Also did you only fully tighten mounts after load was on car? Quote Link to comment Share on other sites More sharing options...
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