Yeah, yer proud allright
The procedure IS in the disc. Disc 1, go to the second page of Models and select the 4Magic. Then hit "continue".From that menu select "maintenance manual", from the next menu select the bottom option, "Maintenance Manual Index". On the next menu go to the 3rd page, select job 2801, which is replacing the transfer case oil.
One hint is that you might want to get the exhaust shield off (you have to do this to do the job anyways) and remove the fill plug before removing the drain plug to see if the tx case is way over-full. If it is, this is the death-knell of the Tx case, bye-bye baby.
Gilly