Ball Joint Separator
A tool used to separate ball joints from steering knuckles and control arms without damaging the joint boot.
A ball joint separator (often called a pickle fork or a scissor-type press) is a specialized mechanical tool used by mechanics to extract tapered ball joint studs from steering knuckles, spindles, or control arms. Because ball joint studs are tapered and pressed tight into their mating holes under high torque, they wedge themselves in place and cannot be easily tapped out with a hammer.
A scissor-type separator features two jaw plates that slip around the joint neck. Turning a forcing bolt compresses the plates, applying immense, controlled pressure to pop the stud out of its seat. A pickle fork separator is a wedge-shaped fork that is driven between the control arm and spindle with a hammer. While effective, pickle forks usually tear the protective rubber grease boot, meaning they are best reserved for when the ball joint is being discarded.
Using the correct scissor-type separator is critical when performing repairs that require disconnecting the suspension without replacing the joint itself, such as during axle shaft replacements. Applying penetrating oil to the tapered stud beforehand helps ease the separation and prevents stripping the threads.