After lots of reading to find out what my Transfer-case problems were for my 02 Bravada. I read lots of posts on Bravada Transfer-cases problems which could be solved or prevented by using the correct BLUE fluid (TrackII ?) So to save having any problems with my new Transfer-case I bought the Blue Fluid from the dealer and filled it up. I am not sure if you can get it from anywhere else but to save having to buy a new Transfercase ($5,000.00 + Installation) you should go to the dealer and check if you need that Blue fluid as well.
Oh and there is nothing wrong with buying your Transfer-case and Encoder Motor from a Junkyard or EBay. After installing a used transfer-case and new Encoder Motor with my Brother(we are not mechanics) it cost under $1,000.00CAD.
DEXRON-III automatic transmission fluid. 2.4 QTS.
Motorcraft MERCON automatic transmission fluid
Motorcraft MERCON automatic transmission fluid is used in your transfer case ( approximately 1.3 quarts to bottom of fill hole )
Fill it till it runs out of the fill hole. Again that's the FILL HOLE, not the DRAIN HOLE. They are separate.
automatic transmission fluid
It is under the car behind the tranny
Mopar ATF+4
Through the plug in the center rear of the housing.
Change and flush the transfer case fluid immediately.
According to the 2001 Ford Explorer Sport Trac Owner Guide : ( 1.2 litres / 1.3 U.S. quarts of Motorcraft MERCON Multi- Purpose automatic transmission fluid is used in the transfer case )
The 1974 model 203 transfer case has a fluid capacity of 5.5 quarts. You can check the fluid level from the same hole that you fill the transfer case.
242 transfer case uses ATF+4 transmission fluid. 247 transfer case uses a special transfer case fluid available from the dealer.