"it may have been caused by the way the tow truck operator pulled the car up onto the tow truck deck"
Not likely, unless something was already 95% broken. Wrapping the chain around the control arm and driveshaft is rather unimpressive, but I've seen worse. You would be surprised--trust me on this--at how resistant cars are to being dragged here and there for towing purposes. Things that get broken are already broken, IMO (but perhaps they don't know it yet)
There are numerous potential causes for this noise. Tire noise, bearing noise, differential noise, transmission noise. CV shaft? Probably not. Driveshafts rarely make noise outside of a snapping noise, before they break, but you never know.
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Chris Herbst
Scottsdale, AZ
1992 940 153k
2005 S80 31k
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