I recently installed rear shock absorbers on the 240 wagon and broke the end off the top mounting bolt. I over torqued it. Oops! Anyway, had to order a new one from Volvo dealership here in Franklin, TN. I'll have it tommorow afternoon.
This bolt with nut and washers cost me near $30. So, be careful out there when doing this job. I need to add a spacer/washer to both sides on the top shock mount bolt in order to tighten it snug enough to avoid the knocking noise it was making. It is a common problem according to the many threads on the topic on all the forums. No matter what brand of shock absorber - people still have the knock without the extra spacer/washer. Hope this sets it up right when I reinstall them this week.

Best of success to you all,

Brandon,
Franklin, TN