Upper Ball Joint

The upper front ball joint used on this vehicle is pressed into the control arm. The upper ball joint uses a tapered stud for attachment of the ball joint to the steering knuckle. The tapered stud of the ball joint is attached to the steering knuckle using a required flat washer and lock nut.

The ball joint is not a replaceable component of the upper control arm. If the ball joint is found to be defective it will require the replacement of the complete upper control arm.

Due to the upper control arm being made of aluminum and the ball joint being made of steel, (dissimilar metals) corrosion may occur between the pieces. For this reason the upper ball joint has a corrosion preventative coating applied to it.

The upper ball joint is not a repairable component and must be replaced if it is determined that the ball joint is defective. No attempt is to be made in any way to repair the ball joint.

The (grease) seal boot used on the upper ball is not replaceable as a separate component of the upper ball joint. If a torn seal boot is noticed when servicing a vehicle, or if a seal boot is torn while the vehicle is being serviced, the complete upper control arm will require replacement.