4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

cutting springs.

Old 05-28-2011, 01:54 PM
  #31  
TRUEBLUE3934
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Be careful about dropping the rearend fully without the shocks attached,as mentioned above, because you may damage your brake lines that way. Do not allow the rear to drop far enough to load the brake lines.

If you cut springs more than about 1" you will probably want/need CC Plates. You will not want/need a bumpsteer kit since none of the suspension mounting points have been changed. Your geometry has not been changed, you are simply running at a more compressed range of the travel. I am still uncertain about the possible benefit from a X2 balljoint kit.
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Old 05-29-2011, 10:15 AM
  #32  
hpwrestler220
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Like killjoy said, you cut the bottom of the front and the top of the rear. I recommend not going more than 3/4 coil in the rear.. Otherwise it will start riding rough. The front I would start off with 1 coil.

Cutting springs DOES raise spring rate. Don't listen to what anybody tells ya otherwise
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Old 05-29-2011, 02:38 PM
  #33  
TRUEBLUE3934
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Originally Posted by hpwrestler220
Like killjoy said, you cut the bottom of the front and the top of the rear. I recommend not going more than 3/4 coil in the rear.. Otherwise it will start riding rough. The front I would start off with 1 coil.

Cutting springs DOES raise spring rate. Don't listen to what anybody tells ya otherwise
You are correct about raising spring rate with cutting the spring. You just have to envision the spring completely unwound and stretched out straight. Cutting the spring is the equivelent of cutting some length off a strainght bar and then trying to bend it from the ends. A shorter bar made of equal material will require greater force to bend it. The amount of rate increase is related to the percentage length of working spring reduction.

If you cut some off of a spring intended to spring bind, the effect is a little different...
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Old 05-30-2011, 01:02 PM
  #34  
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Exactly...
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