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Shelby Drop?

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Old Feb 27, 2007 | 01:34 PM
  #1  
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Default Shelby Drop?

Ok, we got the front springs pulled out of the 65 coupe with the intent of shorting them about an inch for a better stance. After getting them out (a hair rasing experence if there ever was one) I thought about perhaps doing the Shelby drop mod. So...good idea or bad? I have researched the FAQ section and from what I can tell if I'm going to be doing heavy cornering it's a good mod. The info says that doing the mod will give about 1/2 inch drop so I may only have to shorten the springs about 1/2 inch for a total drop of the front endabout 1 inch. Any thoughts?
Old Feb 27, 2007 | 01:40 PM
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Default RE: Shelby Drop?

Good idea. The Shelby mod is about changing mediocre front end geometry to better front end geometry and the by product is about 1/2" drop. Combine that with your spring change and you're good.
Old Feb 27, 2007 | 03:26 PM
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Default RE: Shelby Drop?

Do you have the template? Definately make sure to get the holes in the correct locations or you will dork up your handling big time. I made a metal template by spraying sticky stuff on some 3/8" thick metal plate and slapping the paper template onto it then putting holes in the appropriate places. Notice that the drop mod is different based upon whether you have a 65/66 or 67/68. Drilling the hole to 1/2" is fine - you don't need to make it 17/32". Wiggle the bit just a little if you need to enlarge it.
Upgrade your upper control arms to a heavy duty Moog ball joint (John at OpenTracker Racing can help you with this).

DEFINATELY worth doing.

(Scary messing with those springs - huh?!)

BTW - when you print this out make sure to take it to the local copy shop along with a ruler so that you can enlarge/shrink it correctly so that on the paper the holes are 1" apart.

[IMG]local://upfiles/44155/42C761E8F3AC48C281381E9A48B377C6.jpg[/IMG]
Old Feb 27, 2007 | 10:36 PM
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Default RE: Shelby Drop?

.....

Last edited by Scott H.; Jan 13, 2010 at 11:29 PM.
Old Feb 27, 2007 | 11:25 PM
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Default RE: Shelby Drop?

Maybe thats why my car stayed screwed up with the Shelby drop. I just printed it out, and then drilled the holes and slapped it back together. I had to put it back to straighten the front end out, and it looks like it's starting to do it again. Who wants to buy a 66 mustang?
Old Feb 27, 2007 | 11:52 PM
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Default RE: Shelby Drop?

maybe you sould just go with the 620 lowering springs to get that 1"...kind ofa fool-proof installation where the shelby drop is a little more involved.
Old Feb 27, 2007 | 11:57 PM
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Default RE: Shelby Drop?

It's my understanding that the 620's alone won't achieve a 1" drop.
Old Feb 28, 2007 | 12:08 AM
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Default RE: Shelby Drop?

the shelby drop is fine you never cut a spring
Old Feb 28, 2007 | 02:07 AM
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Default RE: Shelby Drop?


ORIGINAL: Scott H.

I am a big fan of Klaus Arning's modification. The idea is that the tire gains negative camber when the suspension compresses, as happens when the outside sping compresses going through a turn. This helps keep more of the traction surface of the tire in contact with the ground. I prefer between a quarter and half degree of negative camber at ride height.
If you are going to run radial tires, you will also want to increase the caster.
As for a template, I've used graph paper (1/4" squares) many times with excellent results. It's accurate and cheap.
Good luck,
more detail please
Old Feb 28, 2007 | 02:11 AM
  #10  
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Default RE: Shelby Drop?

what is a shelby drop?



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