Once you slide out the yoke and cleaned up as best you can around the
area you are working, you are ready to remove the speedometer sensor.
Attached to the housing is the stock "green" 3.45 gear. There is one
small bolt securing the housing together. No need to remove the tail
housing, but do be prepared for the gush of gearbox fluid that is
about to come out.
Once you've removed the speedometer sensor and green gear, you are
ready to remove the white gear. Looking through the available space
between the output shaft and the seal, you can see the white gear.
There is a small retaining tab that must be compressed in order to
slide the white gear out. Press the top of the tab arainst the shaft
and slide the gear toward the rear. I was able to secure the tab with
my finger and pull it out. If it fell, it appears easy to retrieve
with a small magnet. There is plenty of room in there to work.
I pushed the gear back toward the rear opening as much as I could with
my finger and used a small screw driver to get ti past the seal. There
is enough room that you should not pinch the seal.
the new "white" gear
Installation is simply reverse of the removal steps, however be sure
to allign the slot for the tab before you slide it back.
the "blue" gear and speedo sensor housing
The green abd blue gears simply slide on the keyed shaft of the
speedometer sensor. Make sure you clean everything prior to
reinstallation. That's it! Total job completed in under 10 minutes!