I am desperately seeking a 3.73 LSD for my '88 535i. Here are the criteria. It must have 90k or under, it must make no noise, and be able to be shipped to northern NJ. My father is also looking for a 3.91 LSD out of a US M5 or M6 for his '85 M635csi. It must have under 70k miles on it, make no noise, and be able to be shipped to northen NJ. Thanks, Rob Anderson '88 535i ------------------------------