They are still coilover struts, the only difference is the coilover shock body screws into the strut leg for the additional ride height adjustment. I'm having trouble trying to upload pics via my iPhone so you may have to look it up for picture reference. I'm not planning on running them on the rear as it only applies to coilover (or adjustable spring) type setups. For the rear of say a 910 Bluebird with a factory live axle coilover setup (Aus spec), a 'base height adjustable' style kit you would design it so that you would have an adjustable jack screw above the bottom eye bolt as well as threaded lower spring seats. The jack screw would be like those on an adjustable lower control arm with left and right hand threads for easy on car ride height adjustment. This way the car can be lowered or raised by the jack screw rather than the spring seat. Pre-load on springs has a huge effect on droop and the effective spring rate ie: a compressed spring has a higher poundage. Open wheel race cars have inboard coilover shocks operated by pushrods/pull rods for this reason (*note* also for rising rate rocker ratios for aero loads and to get the shocks out of the airstream). A leaf sprung rear end could be shimmed (where you would put lowering blocks) on either side for corner weighting. This wouldn't effect the spring rate as the leaf stays the same, only ride height changed. Corner weights being even across the front of a car are more important than the rear generally speaking.