Flip the GE dishwasher’s breaker switch, at your electrical breaker, to the “Off” position.
Pull out the lower rack from the GE dishwasher.
Unscrew the cap on the top center of the spray arm by turning it counterclockwise. You will see the bearing beneath the cap.
Pull out the old bearing, using needle-nose pliers.
Insert the new bearing by pushing it down until it snaps into place.
Replace the cap on the center of the spray arm.
Turn the power back on to the GE dishwasher.