I have an excellent condition 4.10 LSD from an '88 325iS automatic. The diff has about 205K miles on it but works perfectly. The car was auto tranny and driven like a grandmother from 0-180K miles, and since then it's only seen 2 track days and 2 autoX. 75% highway driving, fluid changed with redline on a regular basis. Since i swapped to the 5-speed, it's just a bit too low gearing for me and i am looking for a 3.73.
Darin
Darin
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