Part numbers below:

Bolt part # 988185

Nut part # 987891

Neil.

For the grinding, check the simplest things, like the brake dust shield being bent onto the rotor.

Neil.

Simple answer is no. It is easily bent back away from the rotor. Finger pressure is enough. You only need 5mm/ 1/4" of a gap or so. The dust shield is very thin so it doesn't take much to bend it out of position. No need to remove it or anything else. Just bending on that lower edge is all that...

rotor guide screw not mandatory

I had a similar problem recently. It isn't caused by over-tightening the axle nut, just the opposite. It's caused by not tightening it enough. I thought the bearing was a sealed roller bearing, but it isn't. It's a pair of tapered ball bearings much like a bicycle steering stem. If it isn't tight en...

Did the alignment shop not first set the steering wheel straight before doing the alignment as they are supposed to do? You can straighten the wheel. It requires removing the air-bag (battery disconnected), unbolting the steering wheel bolt and then mark the straight ahead position with a marker or ...

. The first thing to try is turn the steering left and right, lock to lock. Start with the steering wheel centered then turn. Did the steering wheel end up with equal turns meaning it ended up in the same position but on opposite sides. If it does it means the steering wheel is centered and you have...

OK, this may help. Below is our friend Robert DIY's video on removing and refitting a steering wheel. Take note on the order of removing the 2 Torx screws on the back of the wheel in relation to the airbag. https://www.google.com/search?q=volvo+850+steering+wheel+removal&oq=Volvo+850+steering+wh...