I need to get some new rotors for my wife's 240 with 120K miles. I just need the front ones. Apparantly they hae 10 thou of runout and they certainly don't feel good! I can get aftermarket rotors for as little as each. I'd skip those but the autoparts guy says the top-grade ones at each are great. I have not priced them at the dealership yet but a local independant that sells Volvo parts put them at 5 each. Is it money well spent to get the Volvo part in this case? Or are aftermarket rotors generally OK? Also, I've never replaced rotors but when I've done brakes in the past it's always looked pretty easy. ANy tricks to this job? Do I need to replace the nice new pads I have on there? (probably under 10K miles on them)... any special tools reqired? Thanks!