Is it normal for the rear differential to thump when spinning rear wheels on a lift? - Cadillac Forum - Enthusiast forums for Cadillac Owners

Cadillac CTS The mid-sized sedan that has grown the popularity of the Cadillac brand with it's low price and sleek styling

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Old 05-10-2018, 06:24 AM
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Default Is it normal for the rear differential to thump when spinning rear wheels on a lift?

When I have my 2007 CTS on lift and free spin the rear wheels the differential thumps, kinda like a piece of rubber in spokes. Is that normal?

I hear a similar sound in the winter when spinning on ice but always thought it was the tire tread.
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