I’m not sure if you’ve messed with the preload yet, but if you do, there are three important things to follow:
1) use a strut compressor to fully release pressure from the collar before loosening or spinning.
2) Rotation is 2:1, so 1/4” higher up (i.e. more preload) = 1/2” lift
3) most important: measure the length the coilover is now, then measure the length that it should be when preset from the factory and check that the difference in the collar height equals the expected difference in the current lift over stock.
About number three: I got mine and did not check, and it turned out that I had a bad spring on one of the coilovers. It barely presented itself at pre-set height but became very apparent the more I set preload.
Here’s a couple highlights. First is me compressing it when I was trying to figure out what was wrong, and in the second pic, notice how many threads are showing on the coilover body below the collar. That was twice what was needed to set 3”. Third pic shows bad spring next to new spring- the pic is deceiving, but there was only an 8th inch difference between them when unloaded.
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