part list for strut replacement

[lsupcar]

The car has 170k miles.
Plan to replace the struts and mounts.
Should I also plan to replace the top and bottom spring seats and helpers?
Do they tend to go bad by this time?
I am also aware of the single use nuts, but am trying to eliminate a front end rubbery scrunching sound as well, and was wondering about the other rubber parts.
Thanks.
Bill