Suspension Remove Spring Isolators Without Fully Removing Springs?

Discussion in 'Fox 5.0 Mustang Tech' started by 87MustangGT, Jan 3, 2014.


  1. 87MustangGT

    87MustangGT Founding Member

    Joined:
    Nov 18, 1999
    Messages:
    1,252
    Likes Received:
    1
    Trophy Points:
    39
    Location:
    Seymour, CT
    Part of the Prothane bushing kit I got of course includes F/R coil spring isolators. In doing research looking for install tips, it seems like a large number of folks swapping springs are removing the isolators without any detrimental NVH effects; and getting a mild drop from it. If mine are shot anyway, I'm thinking why not try running w/o for a bit, before replacing them.

    On that note, I'm wondering if it's possible to just use a spring compressor to pinch the springs enough to remove the isolators, without disconnecting control arms, etc. Thoughts?
  2. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

    Joined:
    Nov 30, 1999
    Messages:
    6,085
    Likes Received:
    702
    Trophy Points:
    164
    Location:
    Somewhere on a hill in the PA wildnerness
    bit dangerous, but I've done it that way in the past


    Sponsored Ad

  3. Mustang5L5

    Mustang5L5 Car used in adult film "Highway Gangbang-InDaButt" SN Certified Technician Founding Member

    Joined:
    Feb 19, 2001
    Messages:
    21,363
    Likes Received:
    252
    Trophy Points:
    124
    Location:
    Massachusetts
    The front isolators wrap on the spring. Might be tough to get those off without removing the spring.


    For the rears...unbolt the shock and quad shock and the rear drops far enough away for the spring to just fall out.

    I run no isolators on my front Mach 1 springs.
  4. 2000xp8

    2000xp8 Mustang Master

    Joined:
    Aug 9, 2003
    Messages:
    5,284
    Likes Received:
    178
    Trophy Points:
    104
    Location:
    NJ
    I'm having trouble understanding the point of what you are trying to accomplish.

    Is it for the "mild" drop? If so, this is not worth the trouble or risk. If they are old and worn out they are probably damn near flat anyway, so mild, might literally mean almost nothing.

    I've run with and without them, i would not run without them again.

    If you are going to replace them, then do it all at once, if not, just leave them in there.
    88LX5.Oh likes this.
  5. 87MustangGT

    87MustangGT Founding Member

    Joined:
    Nov 18, 1999
    Messages:
    1,252
    Likes Received:
    1
    Trophy Points:
    39
    Location:
    Seymour, CT
    Originally, I was going to replace them, simply because I got new ones in the kit. If I'm not getting squeaks, I probably won't spend the 6+ hrs to pull the springs until such time that I actually decide to get lowering springs.
  6. mikestang63

    mikestang63 Mustang Master

    Joined:
    Aug 28, 2012
    Messages:
    2,725
    Likes Received:
    640
    Trophy Points:
    134
    We're talking about 1/4 to 1/2 an inch difference. I'd leave them in.
  7. 2000xp8

    2000xp8 Mustang Master

    Joined:
    Aug 9, 2003
    Messages:
    5,284
    Likes Received:
    178
    Trophy Points:
    104
    Location:
    NJ
    So essentially you were going to do this as a method of lowering the car until you were going to get lowering springs?
    Not a good idea. Wait and do it all at once.
  8. 87MustangGT

    87MustangGT Founding Member

    Joined:
    Nov 18, 1999
    Messages:
    1,252
    Likes Received:
    1
    Trophy Points:
    39
    Location:
    Seymour, CT
    No, I'm not planning to get lowering springs at any point in even the remotely foreseeable future; if I was, I would just wait until that time.

Share This Page