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139 0304 Meas 6 Z

If you don't know the exact location of the center of rotation of your ball joints, this simple method will allow you to establish the true center. Once you have marked the point, measure to the cap surface on the control arm band side and remember that distance. You will know where to mark the center on the car with the ball joint installed in the control arm.
Front Moment, Roll - Stock Car Measurements, Part I

If you don't know the exact location of the center of rotation of your ball joints, this simple method will allow you to establish the true center. Once you have marked the point, measure to the cap surface on the control arm band side and remember that distance. You will know where to mark the center on the car with the ball joint installed in the control arm.  View Related Article

 

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