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Old 07-19-2005, 04:30 PM
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mustang suspension mod

Anyone familiar with the negative wedge camber kit for early(65) mustangs by pro-motosports engineering? I would really like to do something to correct the lousy factory steering and this sounds like it would help but the kit pictured in the NPD catalog shows a kit that appears to consist of nothing more than a metal template and new ball joints-for $254.95. I am willing to spend the money if the kit is worth it but I don't want to spend 250 bucks on a stock pair of ball joints, a 2"x3" piece of metal with 4 holes in it and a set of instructions. Am I overlooking something? Any suggestions on doing this mod? It seems like it should be quite simple to make the plates but I am sure that the location is critical and front-end alignment may use different specs.

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Old 07-19-2005, 04:59 PM
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This is called The Shelby Drop and the paper templates are available online. The top control arm is dropped 1" and moved slightly rearwards (mounting position on apron redrilled). All you need for the upper ball joint(s) (if they are good) is a wedge shim that will allow the joint shaft not to bind in the ball joint itself as you are changing stock geometry.

It allows for more negative camber on hard turns so as not to override the tires.
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Old 07-19-2005, 05:32 PM
aka Duke of URL
 
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-SHELBY DROP TEMPLATE-

You may not need the ball joint wedges as PRO-MOTORPSORTS is lowering their control arm by more than 1". If you perform this alteration, make sure you mount the arms and spindles (without the spring) and check for any upper ball bind throughout the control arm movement.

As we all know, Ball Bind can be most damaging and painful...
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Old 07-19-2005, 06:00 PM
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Kultulz-Ok, that looks like just what I needed to know. I can make that plate easy enough and I can even machine a set of wedge plates for the ball joints if needed to prevent ball bind.. but what about alignment? Do I still use the stock specs?
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Old 07-20-2005, 03:02 AM
aka Duke of URL
 
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Red,

You can use just the paper template to center punch the new mounting holes location. Or you can transfer the pattern onto a metal plate to make the modification more exact (say if you had a shop).

This Tech Article- will give you the settings and more ideas on how to speed up the steering and suspension.
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Old 07-20-2005, 09:05 PM
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Thanks a bunch, that tech article has a lot of info and all the answers I was looking for. He pointed out what I had already assumed and that is that "kit" from NPD is just a new pair of ball joints and 5 bucks worth of metal plate with instructions that apparently can be found easily. I must have been living under a rock for the last few years, I had no idea that mod was so popular I knew it had been around about as long as the mustang but I thought it was a "high tech" deal that was for racing and required a lot of special parts. When I saw that kit I thought maybe it would be practical for a street machine and now I am finding that is not only simple to do but also quite common and since my suspension is all apart for rebuild I intend to do this.
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Old 07-20-2005, 11:14 PM
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It has been a popular modification for years, once everyone figured out what SHELBY had done. FALCONS, COMETS even later FAIRLANES are prime candidates for it. You would be surprised what you can do with a few trips to a well stocked salvage yard...
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