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Thread: Swapping springs

  1. #1
    Join Date
    Jul 2010
    Location
    KC, Mo
    Posts
    4,856
    My Cars
    2004 M3

    Swapping springs

    I have stock 04 M3 springs. What would prevent them from being used on a 330 sedan?

  2. #2
    Join Date
    Oct 2003
    Location
    Seattle
    Posts
    3,494
    My Cars
    99 M3

    Swapping springs

    Potentially, different diameter spring windings.
    That is the case on the E36 and E36M3...the lower end diameters are significantly different.....even 1995M3 and 1996+M3 had different upper winding diameters.


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    Last edited by bluptgm3; 01-19-2020 at 11:48 AM.

  3. #3
    Join Date
    Jul 2010
    Location
    KC, Mo
    Posts
    4,856
    My Cars
    2004 M3
    If just the upper spring diameters, then the M3 strut tops will resolve that. I have the strut assemblies as well as the rear springs and shocks out of my 04 M3 laying on a shelf. All are Koni yellow single adjustables. I would love to have firmer springs on my S54 swapped Sport Touring. The car is low enough as it is, has 18x8" wheels and 245/40x18 tires, and much lower could cause clearance issues. It just seems that any OEM replacements lower the stance of the car.

    I may have to get the car on my QuickJack and do some measuring.

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