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Thread: Differential Swap Question

  1. #1
    Join Date
    Jan 2004
    Location
    Boston, Ma
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    441

    Default Differential Swap Question

    Can a 3.73 LSD from a 1990 323is be put on a 1992 525i 5 speed

  2. #2
    Join Date
    Dec 2003
    Location
    Austin, TX
    Posts
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    Default

    as far as i know, only other E34 and E32 differentials will fit. you might be able to put the ring and pinion gears into your E34 differential housing, but the assembly itself wont fit.
    1995 540iA M-Sport - 76k miles. 1 of 1 auto AW3 cars.
    1995 540i/6 - Misc Parts donor for above.

  3. #3
    Join Date
    Jan 2004
    Location
    Boston, Ma
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    damn, i found an awesome deal on that lsd, but im not gonna deal with it if i have to rebuild it into mine. Thanks for the info

  4. #4
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,843

    Default if I was you,

    I would stick to an E34 rear end and fron a 6 cyl car or 530 only. you may also have to change the input flanges but thats a lot better than swapping innerds out on these "tiny" ring and pinions.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  5. #5
    Join Date
    Jan 2004
    Location
    Boston, Ma
    Posts
    441

    Default

    i've rebuilt a transmission before so im not worried about doing the work. I really wasn't looking for a lsd, but I stumbled across one for really cheap and figured what they hell. Im not gonna worry about it if its gonna take swappin inerts out cause it isn't too important to me right now.

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