Growling on my truck rear end, which grew higher in pitch as speed
increased (like cruising at 75) was cured by replacing bearings, both in
the differential and at the axle ends. I theorize they were damaged
when subjected to a lot of pounding stress when I had frozen on brake
drums. Problems with gear lash produce more of a whine, in my experience.
Phil Nase wrote:
>I have a similar sound in my yellow Bugeye. If anyone has an answer please
>respond on list. Maybe I can fix it if I know what it is.
>
>
>Phil Nase
>Quakertown, PA
>http://home.comcast.net/~philnasecpa
>
>
>My question is:
>Why was the rear growling? The gears look fine. The bearings seem OK. The
>front seal was leaking a little. The sound was a steady moaning type growl
>that increased with speed. At 35 MPH is was noticable. At 45 it was pretty
>loud. I didn't go much faster than that.
>It was noisy at cruise or acceleration, quiet on deceleration.
>Did I have a lash problem or maybe a bad bearing? Any tell-tale clues to
>look for?
>
>Cheers,
>Derf
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