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  #1  
Old 05-30-2013, 04:27 PM
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Location: SF, CA, USA
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simply swapping spring shims

does one need a spring compressor to swap out the shims or can it be done with a simple prybar?

i wouldn't mind dropping the half an inch or so that separates the 1 nub from the 3 nub ones. the shims look cheap. no spring compressor is in sight.

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  #2  
Old 05-30-2013, 05:09 PM
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Can speak directly about your car but, in general if you want to remove something from the end of a spring it must be compressed / unloaded enough to clear the mount.

On cars that run the spring through a arm, a small change in spring height will result in a larger change in ride height.
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  #3  
Old 05-30-2013, 05:10 PM
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The rear can be dropped without a compressor. The front you def need one for, proper klann or clone there of.
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  #4  
Old 05-30-2013, 06:23 PM
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Pry bar? Those springs are rated about 3000 lbs and your going to slip your fingers under it and remove/install a shim?

The proper spring compressor is available in the forum tool rental program for ~$35. And no, those cheap compressors available at auto parts stores are not suitable. For safety's sake, use the correct compressor.
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  #5  
Old 05-31-2013, 01:12 AM
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I know you have a W123. others may not.

The fronts you WILL need a compressor.

The rears, remove the Shocks.

Remove the calipers and wire them up to the Sway bar. this is to keep from stretching the brake Hoses when lowering the Diff and the Trailing Arms.

Place a Floor Jack under the Differential.

Remove the 4 13mm bolts that secures the Diff mount to the body.

Lower the Jack, and the Springs will fall out.


Charlie
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  #6  
Old 05-31-2013, 07:10 AM
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Yup. compressor is MANDATORY for front spring removal/adjustment.

that thing is 50% taller than in it's compressed state... it's got MONDO load on it, a prybar is NOT going to move it. plus, the upper shims are set into the spring more than 2 coils worth, and sitting up in a pocket. impossible to replace them without compressing the springs.
the Tool rental forum has several members renting both the official Klann tool that fits without modifying your car, and the less expensive but still very safe Ebay Clone of the Klann. (Me included in the rental)
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  #7  
Old 05-31-2013, 10:07 AM
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No compromises of any form when dealing with those front springs. They are quite capable of killing you. I would only use the right type spring compressor and even then with care inspecting it before every use.

If you decide to go this way some wear items that only can be replaced with the spring out should be carefully evaluated.
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  #8  
Old 05-31-2013, 11:39 AM
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thanks folks for setting me straight. i get the distinct impression i am not changing either pair until i run into the compressor, which i'm not particularly eager to do. i thought that at full droop most of the tension might be off, but clearly i haven't tried it!

charlie, i went and tried to keep the word "W123" out of my signature, probably a bad idea....
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  #9  
Old 05-31-2013, 12:46 PM
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when you take out that spring the first time, you will think, WTH??

its nearly twice as tall as the gap it fits in, unlike mustangs with similar setup whose springs are nearly full extended when the suspension hangs.

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