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Thread: Use of spring compressor when reinstalling rear strut

  1. #1
    Join Date
    Jan 2005
    Williamsburg, VA

    Default Use of spring compressor when reinstalling rear strut

    Alright, hopefully this will be the last of many questions about re-building my rear struts... I'm looking forward to wrapping this up!

    I've got my rear strut rebuilt with new (to me) springs. If I place the strut up in the wheel well, the assembly reaches lower than the trailing arm. This would indicate that I need to use the spring compressor to shorten the assembly to line up with the trailing arm and install the 22mm bolt. Is this the case? If so, it does not appear that I can get both compressors up in there and have them evenly spaced. Do I need to worry about the springs bending out of shape?

    Thanks again for any help,


  2. #2
    Join Date
    Oct 2004


    Norman, it sounds like the jackstand placement is keeping the trailing arm up in the air. The trailing arm is supposed to hang lower than the strut assembly/bottom bolt. Alternatively, something's messed up with the strut. Hard to say without seeing pictures. No spring compression should be necessary.

    best, whit

  3. #3
    Join Date
    Feb 2005
    Richmond, TX


    Norm, those springs came off my car with them as a whole strut assembly so they should go back on yours the same way.

    1988 M3 - Track rat
    1989 325iC
    1995 530iM
    2000 323iT - UUC BBK, PSS9 Coilovers
    2005 GMC HD Crew

  4. #4
    Join Date
    Jan 2004


    Jeez - I hate to disagree with Whit and all... but I've had the same problem and the jackstands were under the frame / subframe...

    I've often had to push down real hard on the trailing arm while I lift up real hard on the shock so that the holes align enough to slide in the big shock bolt.

    Be sure to remove the pitman arm, it should give you a little more room to push the arm down. Hang the entire rear or disconnect the sway bar or else you'll be fighting against that too!

    Alternately/additionally you can wrap a strap around the spring and just cinch it up a little by hand to make it match.

    Oh yeah - don't forget the special mechanics words.


    - Robin

    72 Chevy K10
    01 E39 M5

  5. #5
    Join Date
    Dec 2003
    Eastern Tennessee USi


    I used a long fence pole to bring mine down enough to get it happening.
    95 E34 530I V2.37
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

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