U B MACHINE UPPER ARMS

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the problem with tall upper ball joints with tall spindles and tall lowers on a street car the you get too much negative camber gain compressing the suspension and then positive gain then negative gain on the decompression. The uppers should not be sitting higher than neutral or you end up with the situation I described. The stud diameter and angle is not the same as what they are on a OEM ball joint so any time you want to use them you'll have to taper ream them.Doing the tall spindle conversion is no more work than to put in the tall ball joints and then you only need the lower if you want to drop the car an extra 1/2"
On a race car we use everything tall so we can get the settings we need cause the car needs the camber gains we get turning left.
 
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pontiacgp, do you have a picture? Or could someone be bothered to draw a picture? I'm not really getting it.
 
I'm having trouble visualizing how a tall ball joint affects anything.
 
the lower ball joint has a longer and larger diameter stud than a stock ball joint so it puts the spindle 1/2" higher which lowers the car 1/2"....it's the same principle of lowering spindles...the tall upper ball joint has no effect on the ride height but they do affect the camber gains
 
Oh. Okay, I gotcha.
 
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