andrewmp6

Look at http://dazed.home.bresnan.net/test all you need is a drill.

lunarweasel

Holy crap, this is awesome. I thought you had to buy control arms with different geometry. The only ones I saw were several hundred dollars.

Thanks to all of you!

lunarweasel

So this is more than a ride height thing right? It corrects the factory deficiency that the cars had stock?

Starfury

Yes. It was stock on all early Shelby Mustangs to improve handling charactaristics. It changes the suspension geometry to give negative camber while cornering, keeping tires flatter on the road for better handling. It also moves the roll center of the car below ground level, helping reduce body roll while cornering.

lunarweasel

Starfury,

Is this precisely how Shelby did this or did they have custom control arms made?

Thanks.

Starfury

Nope, stock control arms. They didn't even fill the old holes

The altered geometry arms (like TCP's) are a relatively new thing. The idea behind those is that you do the standard drop, then the control arm geometry gives you even more of a drop. They get away with it by altering the ball joint angle to prevent it from binding. The stock control arm ball joints will bind if you do more than a 1" UCA drop.

Joe67

thats all 'ol carrol did to 'em back then
i think ford even originally had them to the specs of the drop, and changed it for some reason or another, then the engineer from ford gave shelby the idea...
just what i heard

Starfury

A Ford employee named Arning actually engineered the drop on a prototype car, along with an IRS system that never made production. Shelby realized that most of the handling improvement was from the UCA drop, so he used it on the GT350's.

andrewmp6

The 71-73 mustang ford did finally lower the upper control arm.The 1 inch drop is prefect any lower would only be good for a race only car.The drop is best for the 64-66 cars nice tho on the 67-70 cars.But while your at it i would check everything your taking off maybe get roller spring perches too.

1slow67

I found this out the hard way... My toes was at least 2" outward. I just alligned the car about 2 weeks ago and have had the drop since June.