Propeller shaft collar (doughnut), flexible joint
driven disk (fork), driveshaft and final drive ready to be parted. |
Pull the propeller shaft collar and flex joint driven
disk off... |
...the splined end of the driveshaft. |
Separate the two with a pry bar or large screwdriver. |
Examine the rubber for cracks or deformation and
replace the unit if needed. |
Clean and examine the flex joint splines for
wear/damage and replace if needed. |
Clean and examine the driveshaft splines and C-clip.
Note which groove the clip is in. 95% of the time it is in the
middle groove. Replace any defective parts. |
Some driveshaft U-joints have grease zerks and some
don't. Disassembly of the U-joint will be covered in Chapter 7.5. |
Behind the U-joint is the wedge pin. This must be
removed to free the driveshaft from the final drive. |
Use pliers or your fingers to straighten the cotter
pin holding the castellated nut... |
...and remove it. |
Use a 13mm wrench to remove the castellated nut. |
The wedge pin must be driven out starting at the
threaded end. |
Use a drift and hammer to tap the wedge pin through.
|
The wedge pin has two flat sides... |
...two round sides one of which has... |
...a tapered face. This taper must always be inserted
so that it faces the drive splines. |
You may now pull the driveshaft free. It may take
some moderate force, but usually just a good tug. You can now see
the splines of the pinion gear protruding from the final drive case.
|
There are also some spacers used to put tension of
the wedge bolt. They will sometimes be stuck in the grease on the
end of the driveshaft. Otherwise they will be on the pinion gear
splines in the final drive. |
With the driveshaft removed you can now see the end
of the pinion gear, Universal joint fork seal and pinion collar nut
(large ring with the 4 slots). This nut is
left hand thread. So right is loosen, left is tighten. Use
caution if you remove it as the pinion gear
may fall free which will in turn allow the 28 needle
bearings at the other end to fall free. |