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240 rear end clang-snatch noise

posted by  Don Foster on  Sat Oct 18 12:04 CST 2003
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last visit: Sun Oct 5 11:53 CST 2014
[RELATED]

These differentials are notoriously rugged. It's unlikely that you damaged it and even more unlikely that you did something by adding oil.

To check if it's an LSD, jack up the rear end. With the car in gear (std) or in park (a/t) and the e-brake off, turn one rear wheel. If you can turn it (and the other wheel turns in the other direction), then it's an ordinary differential. If you cannot turn it, then it's an LSD.

Limited slip differentials are not common on a 240.

But if you DO have one, I believe that it requires an additive -- certainly worth asking about.

A failing rear axle bearing (aka wheel bearing) can make a snapping, crunching sound. The last few failures I had fooled me into thinking I had a pebble stuck between pad and rotor.
--
Don Foster (near Cape Cod, MA)






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