Re: driveshaft bearing failure ?
speed dependant, increases with speed, not noticeable until I'm doing at least 25mph. on a smooth road.
sounds like a bearing failure does, or did on my wife's mini rear wheels, many moons ago (pre 4 italian cars).
when I took the wheel off the noise seems to sound like a single or two bearings are missing from a brace at the inside of the driveshaft.
need to define grumbling Vs banging now ? - I'll have aword with my mechanic and see what he says.
I thought for diff bearings, I would have been unable to tell which side it was coming from ? diff is in middle roughly ??