2010 Polaris Sportsman 850 Service Manual, Page 291Get this manual
STEERINGSUSPENSION Installation
1Place the A-arm in the correct position for ball joint installationFace the A-arm end flat on top of the driverCarefully drive the ball joint into place until the ball joint is properly seatedPress into the A-arm in this direction
Place driver HERE to support A-arm Upper A-arm Shown 2After the new ball joint is installed into the A-arm, install new retaining ring