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In your vehicle, you’ll find two different types of ball joints – upper ball joints and lower ball joints. While each of these ball joints serve different functions but both work together to keep steering reliable and responsive.

The upper ball joint maintains the wheel alignment, aids in turning, and allows the steering knuckle to turn. It’s called the non-load-bearing joint (or followers) and is smaller than the lower joint. The lower ball joint carries most of the car’s frontal weight and is called the load-bearing joint. This is also the reason why it wears out ...

Ball joints are the critical components that connect your wheel hubs to the control arms. They provide universal pivoting movement between the wheel hubs and control arms to give you a smooth ride and allow you to precisely control your vehicle. If a ball joint fails, it …

Upper ball joints are typically found in control arms on vehicles with a double-wishbone suspension, primarily helping maintain alignment and providing a pivot for vertical movement of the suspension. They are more common in trucks and SUVs, where durability is …

A failing or malfunctioning ball joint can cause problems with handling in your vehicle, and could eventually come apart, causing the suspension system to collapse and putting you and others in danger. Our detailed step-by-step instructions will help you replace the ball joints on your vehicle.

Jun 7, 2024 · What Do Ball Joints Do? Ball Joints are the automotive equivalent to the human shoulder. Think of a ball and socket design with a base that mounts onto a control arm, and a stem that fits into the tire/wheel assembly. As the control arm moves up and down with changing road conditions, the stem (socket) moves so the wheel assembly stays on the ...

For some vehicles with upper and lower ball joints, you need to support the vehicle’s weight on a jack stand to check for play, relieving the tension on the joint to accurately diagnose it. On others, some play – sometimes more than a quarter-inch of play – is allowable and considered normal.

Nov 30, 2023 · Upper ball joints focus on alignment and suspension movement, while lower ball joints bear the vehicle's weight and enable controlled suspension motion. Regular inspection, maintenance, and timely replacement of worn ball joints are crucial for maintaining safe and reliable vehicle performance.