Im hearing a whining noise as i accelerate in 2nd and 3rd gear. I fear this is the differential about to go, but im unsure. Opinions on this and suggestions as to a possible replacement lsd (gear ratios that is) i could just go stock, but im curious about alternatives. ive got 223k on my 87 325is.
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The whine could be from the differential, but that doesn't necessarily mean that it is "about to go". A fluid change (I like Redline 75w90 for this diff) may help reduce the noise, which is probably from slight wear in the ring and pinion. A differential can run a really long time after it starts to whine.The car makes it possible, but the driver makes it happen.
Jim Levie, Huntsville, AL
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