I've ran a number of the New Process 205's in various applications. If it is going to be used solely for off-roading I recommend an inexpensive 80W90 as it has the right properties and is easy to find if you have swamped it. For daily driving I would run a 75W90 synthetic as it will provide a little better wear protection and will not degrade as fast. Just remember this is a gear driven transfer case, under higher load conditions, your oil will break down quicker.
The NP205 Transfer case takes 2.5qts. There has been quite a bit of discussion concerning the type of oil (gear vs ATF) from 1980 on. It's suspected that the change to Dexron I later on was for fuel economy. They're virtually indestructible so any type of oil is good; unless it's mated to the NV4500. Use the same oil as the trans in case of a seal breach.
how do you check the oil for the front transfer case on a 1990 Toyota four runner
The transfer case uses ATF.
Motorcraft MERCON automatic transmission fluid in the transfer case according to the 2002 Ford Ranger Owner Guide
yes
242 transfer case uses ATF+4 transmission fluid. 247 transfer case uses a special transfer case fluid available from the dealer.
From what I've researched, Gear oil only... ATF is for Automatic Transmissions
2 litres
The transfer case takes atf, use dextron.
donkey, you need frying oil
10w40 motor oil 4 qts
I assume you mean transfer case. The answer is dexron 3