Probably exhaust donut gaskets if it sounds like engine noise. There is a gasket btw the muffler and center section that is right near the rear diff. Could be the problem.
If it doesn't sound like engine noise and sounds more like a groaning, it is more than likely wheel bearing(s).
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Collin
1995 L AWD
Locker
1987 Porsche 944 turbo
80k miles. MBC + Chips. Relatively Stock
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