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Guess what? Another lowering question!

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Old Jul 25, 2005 | 08:55 PM
  #1  
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Default Guess what? Another lowering question!

Took my car to a shop today and they told me that with cutting the front bushings, there is a possibility that the leaf spring would be damaged 6, 10, 12 months down the road when the cut bushing wears all the way down. He said that you can't replace just the bushing and bolt, that i'd have to replace the whole spring which is around $600!

WhY is this the first i've heard of this?
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Old Jul 25, 2005 | 09:55 PM
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Originally Posted by EMINENT 1
WhY is this the first i've heard of this?
Because it's the first time you spoke to this moron!

Simply not the case and proven here by many many who have done the same...slam it and drive it like you stole it!
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Old Jul 25, 2005 | 10:05 PM
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From: apple valley mn
Default lowering

I don't think you have to cut anything. Mallett has a C5 lowering kit that isn't an entire suspension kit - it just lowers the car while retaining the stock leaf springs. I did it 5 years ago on my '99; it dropped between 1 1/2 - 2"...go to: www.mallettcars.com.
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Old Jul 25, 2005 | 10:19 PM
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The bolt is threaded through the spring. The bushing (or lack of one) is the bottom of the bolts which presses down on the lower control arm. The spring position and tension remains the same, the only difference is how high it allows the control arm to rise (which is what lowers the car).

How is that going to damage the spring?

I'm not surprised the shop recommended against it - most will, just because generally speaking, "cutting things" is typically viewed as a butcher job in the lowering biz...but physically speaking, their explanation is pretty funny.

As for the Mallett kit mentioned above, that probably refers to the rear.
The front lowering (with the stock spring) is accomplished by reducing the distance between the control arm and the bottom of the spring. Assuming the bolts are spun all the way up, from there, all you can do to further lower is reduce the space between the bottom of the spring, and the control arm. That space is normally occupied with bushing. You can remove that, or remove the bolt completely, which allows the spring end to directly press on the arm....that is the lowest height you can possibly acheive with the stock spring, it's very simple.

No one makes a kit to reduce nothing into less, not even Mallett..

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Old Jul 25, 2005 | 10:53 PM
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Originally Posted by Y2Kvert4me
The bolt is threaded through the spring. The bushing (or lack of one) is the bottom of the bolts which presses down on the lower control arm. The spring position and tension remains the same, the only difference is how high it allows the control arm to rise (which is what lowers the car).

How is that going to damage the spring?

I'm not surprised the shop recommended against it - most will, just because generally speaking, "cutting things" is typically viewed as a butcher job in the lowering biz...but physically speaking, their explanation is pretty funny.

As for the Mallett kit mentioned above, that probably refers to the rear.
The front lowering (with the stock spring) is accomplished by reducing the distance between the control arm and the bottom of the spring. Assuming the bolts are spun all the way up, from there, all you can do to further lower is reduce the space between the bottom of the spring, and the control arm. That space is normally occupied with bushing. You can remove that, or remove the bolt completely, which allows the spring end to directly press on the arm....that is the lowest height you can possibly acheive with the stock spring, it's very simple.

No one makes a kit to reduce nothing into less, not even Mallett..

Beg to differ - I was watching while my mechanics installed the Mallett kit - it did involve front suspension work as well as back. I can't remember what the parts were; but they had the A-arms completely disassermbled when installing it. I think it was smaller bushings combined with new Penske ride height non-adjustable racing shocks. All I know is it worked very well - the car is way lower than those that simply lowered the rear bolts; it was a front and back kit. Mallett doesn't have it listed any more on their website - the cost was about $1,400 for the kit. The closest thing I found on their site was the ride height shocks for $1,874 - that must be the "kit" I had since it comes with different bolts and bushings...there, the mystery is solved!
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Old Jul 25, 2005 | 11:06 PM
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If the bottom of the spring is directly touching the control arm, that is lowest you can go. How can inserting any sort of bushing between there lower it more?

I don't doubt they do some mods to lower "more than the stock adjustment allows", but the reality is the same net effect can be had in a half-hour with nothing more than a hacksaw. If there is ANY space beween the spring and a-arm, you will not get 2" lower in the front.

I've seen plenty of full-conversion Mallett cars, none of them sat lower than mine, and mine might barely be lowered 2".

You can differ all you'd like, you cannot overcome the laws of simple physics.

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Old Jul 25, 2005 | 11:34 PM
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Quite a story they told you... As stated above, all you are doing when lowering is reducing the distance between the control arm and the spring. Nothing there to wear out and no way that you will damage the spring. Once the wheels are off and you see what's there, you'll be pizzed that someone wanted to charge you money to do this.
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Old Jul 26, 2005 | 12:24 AM
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Originally Posted by Y2Kvert4me
If the bottom of the spring is directly touching the control arm, that is lowest you can go. How can inserting any sort of bushing between there lower it more?

I don't doubt they do some mods to lower "more than the stock adjustment allows", but the reality is the same net effect can be had in a half-hour with nothing more than a hacksaw. If there is ANY space beween the spring and a-arm, you will not get 2" lower in the front.

I've seen plenty of full-conversion Mallett cars, none of them sat lower than mine, and mine might barely be lowered 2".

You can differ all you'd like, you cannot overcome the laws of simple physics.

One more time - and then I'll shut up. With a coil-over suspension it's the spring that determines the ride height, not the shock. But with a transverse leaf spring suspension it's the shock that determines ride height. Even if the spring is directly touching the control arm (as you said) a shorter shock will compress the spring further than the stock shocks when the spring is touching the control arm. It was the shocks that lowered my car - I remember how much shorter they were when my guys connected them; it was a two inch drop (my hardtop came quite high from the factory, much like the stock Z06 setup) with a lot of space between the tire and fender. With my springs compressed the way they are the ride is pretty stiff; but that just adds to the "race car" feel that's enhanced even more with my DRM 383 stroker race engine with it's lumpy cam and loud, mechanical-sounding drive train.
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