Are your front strut bodies already cut down for shortstroke inserts ? (i.e. you may be running something like the TRD AE92 insert on short stroke legs)
If they are std longstroke (standard struts) you will not be able to use the HTS ones without first modifying the strut legs. you will be able to find details on how to do this on www.aeu86.org.
If they are cut down you should be ok. I previously had AE92 TRD shortstroke inserts (they are Actually made for TRD by Tokico) so fortunately the spacers in the bottom of the struts was the correct size.