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Upper Control Arm Install Question

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Old Mar 7, 2011 | 12:09 PM
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Default Upper Control Arm Install Question

I removed the upper control arms and had new bushings installed and not sure which is left hand and which right hand. Can someone please post a picture of a correctly installed upper control arm on a 73
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Old Mar 7, 2011 | 04:22 PM
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Default upper control arms

You will find that a correctly installed upper control arm will have the mounting surface for the ball joint (roughly) level with the ground and parallel with the top surface of the spindle. If you reverse L & R, the ball joint mounting surface will be tilted quite a bit. Also, your caster angle will be miles from where it needs to be.
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Old Mar 7, 2011 | 04:28 PM
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Originally Posted by gr8t73
I removed the upper control arms and had new bushings installed and not sure which is left hand and which right hand. Can someone please post a picture of a correctly installed upper control arm on a 73
The longest edge of the control arm is facing towards the front of the car.
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Old Mar 7, 2011 | 04:38 PM
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Originally Posted by gcusmano74
You will find that a correctly installed upper control arm will have the mounting surface for the ball joint (roughly) level with the ground and parallel with the top surface of the spindle. If you reverse L & R, the ball joint mounting surface will be tilted quite a bit. Also, your caster angle will be miles from where it needs to be.
Thanks for the information I believe I can figure it out based on the information provided but if somone has a photo they could post I would be greatfull.
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Old Mar 7, 2011 | 07:28 PM
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Here you go. Ball joint tilts toward the rear.



Rick B.

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Old Mar 7, 2011 | 09:12 PM
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Default Very helpful thanks

Originally Posted by 72LS1Vette
Here you go. Ball joint tilts toward the rear.



Rick B.

Rick, thanks so much the photo was very helpful. It's nice to know I can always rely on this site when I have problem.
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