I can see a couple of problems with cranking those things up and down.
- Its going to mess with your alignment. But probably not too big of an issue off road.
- Cranking them up is going to require you to lift 1/4 of the weight of the vehicle. Add friction to the equation and you're going to need a fairly long lever to accomplish your goal.
- The thread looks fairly fine which means its going to take a lot of turns to make any difference.
- There isn't a lot of room in a TJ's wheel well to be turning these things up and down.
I think idea is good in principal, but not very practical. Air bags might be better, like this:
http://www.offroad>
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Adjustable Coil Over Spacer (ACOS?) - Has anyone install them on>their TJ. If so is it easy to adjust them? I would like to install a>set of 4 put them on the lowest setting then when offroading crank them>up. So if you have a set is it easy to raise or lower them. Are they>worth the money?