Manufacturer's Part Number: 101-10109 Part Type: Ball Joints Product Line: Proforged Ball Joints Summit Racing Part Number: POF-101-10109 UPC: 849180002271 Greasable: Yes Ball Joint Dust Boots Included: Yes Quantity: Sold individually.Ball Joint, Front Upper, Chrysler, Dodge, Proforged Ball Joints Proforged ball joints are tested in the real world so you won't be. You can rely on the quality of Proforged ball joints to withstand the rigors of your day-to-day driving—no matter where you go! They feature an improved design to increase longevity and durability, which also makes them a better value. Quality materials and diligent testing yield components that deliver the performance that you need at a price that you want. Replace your worn ball joints with better-built Proforged parts, available for hundreds of vehicle applications.WHAT ARE BALL JOINTS?A critical component of the front suspension, ball joints consist of a ball and socket similar to the hip joint of the human body. Ball joints provide pivoting movement between the steering knuckles and control arms to provide a safe, smooth ride and allow you to precisely control your vehicle.Think your ball joints have gone bad? Worn ball joints contribute to looseness in the front suspension and prevent your vehicle from maintaining wheel alignment. You may experience steering looseness, steering vibration, unusual noises and excessive tire wear.VEHICLE PULLING TO LEFT OR RIGHT?A failing ball joint can cause your vehicle to pull to the left or right which makes it difficult to control your vehicle.FRONT END SHIMMYLoose suspension system components such as ball joints can contribute to front end shimmy. You may feel vibration through the seat, steering wheel or brake pedal.UNEVEN OR PREMATURE TIRE WEARExcessive inner tire wear is a sign that there could be something wrong with your ball joints.POTHOLE DAMAGERepeatedly running over potholes can have a detrimental effect on your vehicle’s suspension system. If you hit a large pothole, look for signs of suspension problems like: bottoming out, excessive bouncing and loss of control, vibration in your steering wheel, loose steering, car pulling to one side or uneven tire wear.