Question on adjusting BC coils

MattP725

So I am finishing up my install of my BCs and SPC arms... my question is, I know people adjust the front height by rotating the housing after removing the brake line and speed sensor. Can I adjust the rear shock in the same manner? Will the housing rotate while it is still bolted in if I just remove the locking collar? I would probably need a strap wrench to turn it I assume.

Also can rotating the shock damage the internals? Someone on the board said they blew a shock by doing this.

Last question... can I put the wheel on and lower the car without the strut bolted (just the spring) to gauge the height before bolting everything in? or will lowering without the rear strut fastened alter the height of the vehicle?

Just trying to make this as easy as possible since I generally only get an hour or so of daylight after work... I've been adjusting these for a few days now until I run out of light.