By toboggan he means slide on the front bucket
I think Hoye can find all the parts you need but it might take a while to round them up.
Your parts manual should be a sufficient guide for how to dis-assemble the hub. I assume the part numbers in the manual are legible. Don't worry about the names for the parts, just reference page/part number when talking to Hoye.
These Yanmars are simple enough for an owner to maintain.
Your 4 wheel drive shift lever is on the left side. If you look on figure 48 in your parts manual you will see it. Those are drain plugs on the botton of the knuckle housing. See figure 28 reference 11.
Probably are tight, but just check bolts 26 and 27 on figure 28 for tightness. These are the bolts that hold the two knuckle housing together.
Here is a picture sort of showing the tobboggan manuver. http://www.tractorbynet.com/forums/...4-yanmar-2010d-4x-w-fel-yanmar-left-side1-jpg
Sent you a pm.
Winston the numbers you are giving me are not jiving with the on line manual I have to try and match them up. I think I know which one is the 4x4 lever as its really the only one left. is push in or out engaged? RUMBLON