tein camber plates w/tein s-techs

[rob808]

i was wondering.got some s-techs and a set of pillowball camber plates that i was planning on using with a set of gr-2 shocks/struts.i was looking at the diagram and saw that i needed a upper s/p seat assembly?anyone know what that is and where can i get it?or if i can reuse my old ones.thanks in advance!