Basically this is the scariest part of the whole job. PLEASE TAKE CAUTION AS THIS IS ALSO THE MOST DANGEROUS PART!!!
Using the tools suggested, it is still hard to do, please consider stopping and taking the struts in to a pro.
That being said, autozone, advanced, and O'rilleys all rent the compression tool for cheap / free.
We will start with setting up our table - I used a vise:
Read the billy directions in full!!!! pay attention, slow down, drink water, breathe.
First, we will read the directions, then, we will locate all points on the parts they spoke of to better grasp the wording. Only after all of this, will we start to attach the compressors on even and opposing sides of the spring.
I found it was easier to tighten the compressors whilst pressing downward, so I laid it on the table to compress it then moved it back to the vise for dis and ass.
Tight / compress the spring very very very very much. So much so that its kinda scary. then look at the spring retention nut on top (the middle one now), if it looks like this:
its not compressed enough. DO NOT TRY TO LOOSEN THE NUT WHILE IT IS STILL HAS SPRING TENSION ON IT!!!!!!!!!!!!!
It should look like this once the spring is compressed enough with the compression tools (note the gap between the nut and the plate:
Now there are two points that must be held / loosened. The top center 6mm (or nonmaring pliers):
and the nut it self with a 15mm open end wrench:
remove and save top plate. remember that it is the top plate!
now remove top spring bushing and stud assymb:
now remove compressed spring assymb (if you did not tighten it enough, the new 5100 will not go on correctly and it will need to be tightened more):
remove bottom washer that is contained within plastic protection shroud (take washer out of shroud-it is the bottom washer! it is bigger than the top! do not mix them up!):
Invert shock, rod end in vise, tight, spray with PB blaster, let sit, go eat lunch:
tap bottom plate with BFH whilst turning shock (tap turn, tap turn, tap turn-DO NOT HEAT!):
mine was rusted and difficult to remove, I was hitting it so hard I thought I was going to bend it... if finally came free.
see part 2 for finish