Its a Niekro ball. As in a knuckle ball. The brothers Joe and Phil Niekro both threw knuckle balls.
By the tip of the boot.
Yes
Do you mean the ball joint in an automotive that is connected to the knuckle? Please write to 2459473@gmail.com for answer.
There is a striking surface (flattened or machined area) on the knuckle on the outer diameter of the ball joint contact surface. Hit the striking surface with a large ball peen hammer (or equivalent) with the retaining nut slightly loosened. After the ball joint has "let go" you can remove the nut and the knuckle.
Fastball, curve ball, drop ball, rise ball, screw ball, knuckle ball, change up
Doubtlessly some baseball pitcher.
In an automobile, a ball joint is a spherical bearing that connects the control arm to the steering knuckle.
A knuckle ball is thrown when a pitcher hold the ball, not with his fingers fully extended, but bent such that only the "knuckle" of the fingers is touching the ball when released. When done right -- and it is not an easy pitch to throw correctly -- the ball will have very little spin. As such, the ball can go just about anywhere before it reaches the plate, depending on how the wind is blowing. When a good knuckleball pitcher is throwing well, batters will be flaying at the ball almost helplessly, as even the pitcher has no idea what it will do as it heads towards the catcher.
It must be replaced as an assembly with the entire steering knuckle. If you check ebay, there might be just the ball joint for sale, but it will need to be pressed into your old steering knuckle.
First, remove the wheel and brakes and then steering knuckle from each side. Then, for each knuckle, use special tool to press each ball joint out of the knuckle. Use same tool to press new ball joint into place. Reassemble. Or, if you don't know how to do any of that, go to a good mechanic.
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