what do i do with the black rubber rings that came with the kit?
 
those should go inisde the sleeve, but on the outside of the strut.
you have the D rings right?
 
 
Yeah, those rings are to ensure that the rear sleeves sit snug against the rear shock.  They add a bit of cushioning while preventing them from shifting around.
 
 
are they for the rear or the front or both?