Ferret erratic knocking from left hand side front.

[Malcolm Towrie]

Originally Posted by Robin Craig

It might sound like one thing but may be another.

I had a bevel box input bearing go (long story) that sounded like that as the input flange thwacked around as it destroyed itself.

I am sure it will reveal itself shortly in a pile of expensive broken bits

Robin,
Did you hear the input bearing get noisy before the flange thwacking started? Or did the bearing just collapse, like they do if the cage suddenly breaks up?

Because in our case, the front left wheel station was running smoothly and quiet until the knocking started quite suddenly.

It's off the road until this is fixed, which may be take a while due to other priorities.

Malcolm