Quote:
Originally Posted by Tfryman
So now my question is: Why do you have to rebuild a 4 year old differential with XXXXX miles on it?
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It has 71,000 miles and was a rental so it never towed anything. We are the second owners. I noticed a rear end noise when accelerating, that was the clue. Drive shaft is tight, universals all tight. The shaft from the diff, pinion gear is not tight. Can move it up and down about 1/4 in. There is also significant backlash before the gears engage the axle, another clue. So the pinion bearings are shot at a minimum. This goofs up the mating of the gears so they will wear wrong so they will need to be changed.
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