I'm assuming you're referring to the HO204 with hydraulic preload adjuster.
What is done during assembly is to measure the height of the hydraulic preload adjuster at zero preload adjust.
Then the amount of installed preload is calculated based on spring rate.
The two collets are then threaded onto the shock body with the collet having the preload adjuster locating notch oriented for where the adjuster hose is to be routed, then the locking collet is secured against the other collet.
The hydraulic adjuster is slid over the shock body, followed by the spring, and placed into a shock spring compressor.
The bottom spring seat/retainer is then mounted and shock assembly removed from the spring compressor.
The removal is the reverse.
With a shock spring compressor, the job is super easy.
You will not be able to remove the preload adjuster unit without a spring compressor.
Last edited by SubSailor; 08-02-2014 at 01:48 PM.