Noob spacer question

I plan on installing my 5100's with eibach's this weekend with the driver side spacer. I have searched everywhere for the location of the spacer. Do I install the coils on the shock, secure the nut then put the spacer on top or does it go on the coil first, then the cap and nut?

 

spacer on top of everything. then coilover. the spacer will go between the coilover and the strut tower/perch/where it mounts to the truck

EDIT: that is if its a top plate spacer... if not then it will go inside the coilover,on top of the coil

 

its the 1/4" spacer from Toytech.

 

much appreciated all.

 

post pics when your done. i just order the same setup.