Parva,
Check your flex discs, if they are ok, then check your half shafts, and then your strut arm bushings in the rear. If not found there, look in the front. MB's are solid and the sound resonates, sometimes it is hard to find. If your busings and all are ok, you could have a defective bearing in the rear and depending on the vehicle it can be a rough job. Good luck!

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Brian W. Heitman

www.MBCA.org/northtexas

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