Originally Posted by
pee vee
yes this happens a lot.
when you jack the car up, more often than not, you get 'helper' springs to fill the gap, where the main coilover spring goes loose.
where the piston out-extends the coil spring.

yes, but if the piston doesnt hit the stop, even with a helper it will still be slack....the piston has to stop or you cannot tension the spring...length of the spring is irrelevant tbh..because you need to tension it somehow
so the piston will hit the stop everytime the weight is off it... otherwiise you cant make the spring tight...
if you have short springs that dont push the shock to its stop, you fit helpers, which keep the piston at full travel on the stop when the weight is off