Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

New Springs = Disappointing

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Old Aug 28, 2007 | 08:43 AM
  #1  
nassaubayman's Avatar
nassaubayman
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From: Houston, TX
Default New Springs = Disappointing

I had bought a pair of leaf springs from John's Mustangs in Houston, but have been putting off installing them. I've never been happy with the stance of my Mustang - I think its too squatty in the rear.

I was inspired by Nabontra's post yesterday concerning his replacing the leaf springs on his Mustang. So last night, I got out to the garage and replaced my springs. I should have known when I was removing the old springs because I was able to get the front bolt out without any trouble, plus the bushings on the shackle looked great. When I got all finished, there was no difference in the stance of the car - the top of the wheel opening is exactly as high as with the old springs, 26.5".

I don't want to install air shocks, nor do I want to put a shackle kit on the car (like I did when I was 18). I have KYB shocks on the car now, although I have no idea how old they are.

What do I need to do to get the car's stance where it belongs?

Old Aug 28, 2007 | 08:58 AM
  #2  
RobbieG.'s Avatar
RobbieG.
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Default RE: New Springs = Disappointing

6 cyl springs in the front?
Old Aug 28, 2007 | 09:14 AM
  #3  
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htwheelz67
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Default RE: New Springs = Disappointing

just cut the front springs a bit, about 1/3 coil at a time.
Old Aug 28, 2007 | 09:35 AM
  #4  
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muggsy
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From: Boston MA
Default RE: New Springs = Disappointing

I have the exact same issue, all new springs all around and it is low in the back. I used mid eye springs in the back, which are yours? I'm guessing that if I had gone with standard eye I'd be better off...

Mark
Old Aug 28, 2007 | 09:40 AM
  #5  
JMD's Avatar
JMD
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From: AR
Default RE: New Springs = Disappointing

A spring shop can "re-arc" the springs for greater verticle lift. There is usually a spirng shop in major cities, they deal mostly with heavy trucks, but they will also usually work on cars as well.

It sounds like you already have a couple of good springs that you can have "repaired" while leaving the car in running condition.
Old Aug 28, 2007 | 10:09 AM
  #6  
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highhilleer
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Default RE: New Springs = Disappointing

I agree that the back doesn't look too low, the front looks too high. Do you have any problem with rubbing or are you just concerned with the rake of he car?
If you do the shelby drop it will lower the front ~1/2", which is a better choice than cutting springs.
Old Aug 28, 2007 | 10:34 AM
  #7  
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fastbackford351
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Default RE: New Springs = Disappointing

Get a set of 1" lift springs for the rear and if you do the Shelby drop on the front end with the right tire size combo and it will give it the slightest of rakes.

I did this combo on my fastback and absolutely NAILED the stance. Gives me a chubber everytime I look at it.
Old Aug 28, 2007 | 10:40 AM
  #8  
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htwheelz67
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Default RE: New Springs = Disappointing

I did the shelby drop and 620 springs with 2/3 coil cut, I am running 245 45 17 and 17 x 8 wheels up front and no rubbing, my sagged rear leafs are still a bit lower than the front.

my 67 vert http://htwheelz.smugmug.com
Old Aug 28, 2007 | 10:48 AM
  #9  
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nassaubayman
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From: Houston, TX
Default RE: New Springs = Disappointing

ORIGINAL: highhilleer

I agree that the back doesn't look too low, the front looks too high. Do you have any problem with rubbing or are you just concerned with the rake of he car?
If you do the shelby drop it will lower the front ~1/2", which is a better choice than cutting springs.
Exactly what is involved in doing a Shelby Drop?
Old Aug 28, 2007 | 11:29 AM
  #10  
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crunchyskippy
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From: Northern Virginia
Default RE: New Springs = Disappointing

I would check underneath one more time to be sure something else (frame rail?) isn't flexing oris bent. I'm just thinking out loud here.



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