FCP lists that this is the part for my car:
https://www.fcpeuro.com/products/volvo- ... it-trw-kit
Of course, I ordered these without checking... Apparently, I have these the annoying kind of rear sway bar links.Four Volvo-specific pieces... https://www.fcpeuro.com/products/volvo- ... 0-30760237 etc. As you can imagine, they're pricey: $73.92 for the set...
Of course, I go onto Rockauto and see if there's something else. They only have this:

An URO piece coming in at $6 each. (I know enough not to put URO stuff on my cars.)
So...
After some research, I found that these P1s share many parts with Fords. (Especially the Ford Focus.) I watched a few videos and it seems that the Ford Focus on the S40 share very similar rear suspension parts. It's pretty identical. (And some pieces, like the rear control arm pieces are cross listed...)
I purchased these:

Mevotech Surpreme MK90130 @$6.15/each. (Yes, I guess I could get the Uro parts at this price... hahaha
I should have some time to wrench around this weekend... I'll keep you all posted.
Source:
https://youtu.be/cy39YZbZzzc Ford Focus
https://youtu.be/j-63sFcR_mo Volvo C30/S40/etc.






