Use a pair of pliers to remove the upper worm shaft roller bearing from the gear housing cavity.

The gear housing cavity will still be filled with grease, so it may take some time to find these parts with your pliers.

Use a pair of pliers to remove the worm thrust bearing and two worm bearing races out of the gear housing cavity.

The grease should cause these parts to stick together, but if they didn't, you will need to find them one by one.