Follow these instructions to keep the ATF cooler cleaner working properly:
Replace the two magnetic nonbypass spin-on filters after every 20 hours of use, based on the hour meter, or when you notice a restriction in the ATF flow.
Check the level and condition of the fluid in the tank before each use.
Replace the ATF in the tank when it looks dark or dirty.

Secondary Shaft 2nd Gear Axial Clearance Inspection (A/T)
Install the thrust needle bearing (A), the needle bearing (B), 2nd gear
(C), the thrust needle bearing (D), the 43 x 54.5 mm thrust washer (E), the
39 mm cotters (F), and the cotter retain ...
A/T Differential Carrier and Final Driven Gear Replacement (A/T)
Remove the final driven gear (A) from the differential carrier (B). The
final driven gear bolts have left-hand threads.
Install the final driven gear on the differential carri ...
Driving
This section gives you tips on starting the engine under various conditions,
and how to operate the manual and automatic transmissions.
It also includes important information on parking your vehicl ...