Murray,
Once a diff has a whine to it the gears establish a pattern & that pattern won't go away. Either ring & pinion replacement or a complete diff replacement is the way to rid your car of that noise!! Heavy grease will mask the noise sometimes but can cause bearing damage.
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MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
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