As a final means of securing the steel gear, the retaining ring and EDIS adapter were drilled for two 1/8in roll pins.

Once the gear is located and aligned correctly for the correct tooth position to the sensor tip, the gear can be secured by drilling two 1/8in holes through the gear, using these holes as guides, and two roll pins can be carefully driven in.

Pinning the gear alone would have placed a lot of strain on the aluminum.

The lightening of the gear, and the use of the stiction gaskets, will reduce that stress.

It is possible that the gear may not need to be pinned: the lightening and the gaskets may be sufficient. But just in case they are not, the roll pin holes are there.

The ring and adapter have been puched with index marks. The marks will need to be aligned if the roll pins are going to be installed.