I know this is not a toyota board but i figured i could get some help regardless

My dad has a 1998 Toyota Celica GT convertible. We got some KYB GR2's part numbers: 365092 AND 334125 AND 334126. We also have H&R sports.

For the front shocks they are just the cartridge (straight tube with nothing on it). There is no perch for the spring to rest on.

What am i supposed to do (about there being no perch)?

I looked at the suspension install DIY article but i need to know specifically about this aspect of the install.

Thanks for your help.