Motion Pro 08-0120 User Manual

KNUCKLE/BALL JOINT TOOL P/N 08-0120

The Motion Pro steering knuckle/ball joint tool consists of a tool body and pressure bolts. This tool allows you to
free the control arm ball joints from the knuckle body without damaging the ball joint studs or rubber boots.

I08-0120 11/2011

1. Using your vehicle’s service manual, perform the steps to the point where the ball joints are to
be removed. Make sure you support the vehicle safely and that the control arms are not under a
load.

2. Remove the cotter pin from the ball joint to be removed. Loosen the locknut three to four turns,
but do not remove it completely.

3. Remove the cotter pin and locknut from the opposite ball joint stud.

4. Choose the appropriate pressure bolt length to fit your application. Install the tool between the
ball joint studs, centering the tool’s pressure bolt against the stud to be removed.

5. Turn the locknut so that there is a gap between it and the knuckle body. If the locknut is
against the knuckle body, the ball joint cannot break free.

6. Hold the tool body and then tighten the pressure bolt to apply moderate pressure against the
ball joint stud. Now strike the control arm sharply with a plastic mallet to free the ball joint from
the knuckle body. You may have to make several attempts to free the ball joint stud. However,
do not force the stud out of the knuckle body by tightening the tool’s pressure bolt, this could
damage the ball joint or the tool.

7. When the ball joint stud is free, remove the tool and locknut.

Tool Components

TOOL BODY

PRESSURE BOLT

LARGE (28mm)

PRESSURE BOLT

MEDIUM (14mm)

PRESSURE BOLT

SMALL (9mm)