I have always had a howling differential at high speed, which I take to mean
worn gears. But I am looking for a rumble back there, and I think it is not in
the wheel bearings.
I can hear/feel rumbling at the hub when the shaft is in place, but when I take
it out and move the hub with my hands, the bearings seem fine. There is a
slight "feel" indicating they should be replaced, but not the heavy rumbling I
get when the shaft is engaged with the differential. So what causes low-speed
rumbling in the differential?
Michael Rowe
'74 Bugeyed Midget
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