Mounting Gear Counters

Our team is looking for anyone to help us/point us anyway to be able to mount the gear counters that came in this years KoP. We are using the gearboxes that came in the KoP, the toughboxes, and we have found information about wiring but are not quite sure how to place the gear counters in the gearboxes.

You can find some information about mounting the Gear Tooth Sensor in this thread:
Problem Mounting Gear Tooth Sensor

Thank you.