960driver The IRS in 95+ 960 wagons / V90s (less than 50 of them officially in OZ) layout is the same.
The fibreglass leaf spring is different in sedan and wagons.
The VIN & code plate under the bonnet has the car's suspension code showing the part numbers of the shocks, struts, and springs.
See the Volvo Pocket Data Book for the part numbers, these codes aren't in the parts book.
Mods - perhaps these 2 posts deserve its own topic? Neither post is about parts suppliers.