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Old 05-17-2003, 10:32 PM   #1 (permalink)
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I have been looking at the handling kits for my 66 coupe from different manufacturers. On most of them when you buy upper control arms they give you a template to drill new mounting holes to lower the mounting point for the control arms. They say this increases negative camber and improves cornering. I was wondering if this mod is something that you can do to the stock control arms to get the handling improvement without spending $500 on a control arm kit. If anyone knows about this mod, please give me some info or tell me where I can find out about doing this. I have searched on the forums but have not found much info, I thought there was something called a shelby mod that was similar to this but not sure what that is. I would like to get as much information as possible about how to make the coupe handle better, they way I drive I need it ).
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Old 05-17-2003, 10:45 PM   #2 (permalink)
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This is a shelby mod I asked the same question today I am going to do the same modification ASAP and it will not cost me anything. Do a search for shelby drop and you wil see the replies I received and instructions on how to proceed.
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Old 05-18-2003, 12:30 AM   #3 (permalink)
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Thanks for the help, I cant believe the same question was asked so recently and I couldnt find it. After reading about this mod I wonder if buying the global west control arms might be a better idea. I can to the relocation mod for free vs. paying $600 for the global west arms, but if the kit is better maybe I should go that route. If anyone has installed the global west control arms please let me know how you like them and how they effected the handling of your car.
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Old 05-18-2003, 12:36 AM   #4 (permalink)
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The shelby drop is somewhere in between stock and best. I bought a negative wedge kit which allowed me to drop the arms further for a full negative camber curve, whereas the shelby drop gives it more of a "flat" camber curve. Also I believe the aftermarket upper arms are adjustable.

If you dont go aftermarket, at least go shelby drop. If you have the bucks, go TCP or GW.

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Old 05-18-2003, 12:38 AM   #5 (permalink)
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Yes, you are referring to what is commonly called the "Shelby Control Arm Drop". For 1965-1966 cars, it consists of relocating the control arm studs 1 inch lower and 1/8 inch toward the rear of the car. I got my template from the inside of a Tony Branda catalog ( www.cobranda.com ), but it has been published many other places as well.

There's no reason why it cannot be done using your old control arms, but it can put more stress on your upper ball joints and you may want to replace them if you are dropping the arms.

I also suggest you take the paper template and reproduce it in thick sheetmetal, as that will make it much easier to accurately locate the holes.

Good luck.
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Old 05-18-2003, 12:47 AM   #6 (permalink)
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I just purchased the kit from National Parts Depot. It is made by Pro-Motorsports Engineering. It is $274.95. Its fairly easy to install.

Dont try to do it without buing a kit because the kits either come with new upper controll arms or wedges for the ball joints. This is so the upper ball joint will not bind when your suspension bottoms out.

Note: if you buy the kit you can use the stock controll arms but make sure that you use the fine thread nuts on the controll arms and the coarse on the bolts (I learned the hard way).
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