Hey Ken:

That amount of wear is truly amazing. I cannot believe that this wear would be normal even with an axle with over 300k.
I wonder if the oil change interval never happened for quite a few years. Even so, I would have to believe that the unit was running considerably low on oil for many years to result in this level of wear. It would appear that the length of that slot is over 1.5 inches in length !!!!! Just amazing.

The metal looks like it was polished. Almost looks like aluminum. But I gather it would have to be steel.


Brian Carlton
1984 300 SD