Using Proper Stud Fasteners for Ball Joint & Tie Rod End Repairs

Proper Fastener for the Application

Using the right fastener on applications that use inserts like ball joints and tie rod ends is key to getting a chassis repair done right. Using the wrong fastener could allow the joint to disconnect, resulting in reduced steering and vehicle control.

Knuckle Design Dictates the Stud Fastener Provided

MOOG® provides the correct fastener type according to the OE design and material composition of the steering knuckle. Steel knuckles are typically used on standard model applications, while aluminum knuckles are used for performance models or vehicles with larger wheel rim sizes. Aluminum knuckles may utilize a steel insert with a tapered hole. In these instances, a large flange nut is needed to overlap the steel insert to prevent the steel insert from slipping out of the aluminum knuckle. A large flange nut is not required for steel knuckles, so a standard lock nut is typically used. 

When installing MOOG ball joints and tie rod ends, it is crucial to use the hardware that is supplied with the new part. You can be confident that MOOG provides the appropriate hardware for the application.

Please note that some applications like the Audi A3 and Volkswagen Golf come equipped from the factory with both aluminum and steel wheel knuckles. Before completing the repair, it is important to determine which kind of steering knuckle is on the vehicle, so you know which part to purchase. An easy way to determine if the knuckle is steel or aluminum is to wave a magnet over it. If the knuckle is steel, it will stick; if it is aluminum, it won’t. 

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The content in this article is for informational purposes only. You should consult with a certified technician or mechanic if you have questions relating to any of the topics covered herein. Tenneco will not be liable for any loss or damage caused by your reliance on any content.