...and i think this job is going to take a long-long time....

Well the wiper arm replacement went pretty well. As expected, the wiper pattern is a little different than stock, but not wildly. I went with Bosch 24" on the drivers side, and 26" on the passenger side. The pic with the blue tape shows the difference between the stock ( sharpy mark ) and ...

You’re seeing a few different fasteners get conflated. On the 850 timing setup there are three distinct things: Hydraulic tensioner body bolts (2x): these fasten the hydraulic unit to the block. They’re M8×1.25 and the torque is 25 N·m (18 ft-lb), then +30° per Volvo. The later/wide-belt lever/stack...

Short version: yes, aside from the later-style parts, the only hardware you need to add is two M8×1.25×~40 mm flange bolts for the hydraulic tensioner body (Volvo 988179). The T45 pivot bolt for the tensioner roller is plug-and-play, no custom M10 needed. For best belt tracking, also use the later i...