transfer case fluid

[ohanahorse]

I have a 1989 trooper 4WD...I'm going to change the fluid in the transfer case. My book says to use ATF. I know with automatic transmissions, there are at least two different types and they have specific appliacations. Does it matter with a transfer case??
Thanks

[devil34]

Hi,
I have used Mobil 1 synthetic ATF with great results. Since it is a synthetic fluid it works in almost anything and you can increase the interval between fluid changes.
Hope this helps

[ohanahorse]

Originally Posted by devil34

Hi,
I have used Mobil 1 synthetic ATF with great results. Since it is a synthetic fluid it works in almost anything and you can increase the interval between fluid changes.
Hope this helps

Great..thats a great suggestion..think I will do that with the tranny too..any idea how much each takes..my book does not state...

[devil34]

Hi,
Your right, I forgot to add that I changed the fluid in the tranny as well, Use it in the transfer case and tranny of my Nissan Pickup as well, I noticed smoother shifts on both trucks from the synthetic fluid and a much smoother TOD engagemnt after using the synthetic fluid in my Trooper.
Hope that helps.

TOD Transfer case 2.2 quarts +/-
Tranny 9.5 quarts +/-

Also Mobil 1 make a synthetic gear oil, perfect for the limited slip or regular front and rear diffs.

[devil34]

Hi,
One more thing, if you use Mobil 1 synthetic gear oil in your posi rear you do not have to add any additive as the synthetic fluid is viscious enough to protect the clutch plates.
Hope that helps.

[ohanahorse]

Originally Posted by devil34

Hi,
Your right, I forgot to add that I changed the fluid in the tranny as well, Use it in the transfer case and tranny of my Nissan Pickup as well, I noticed smoother shifts on both trucks from the synthetic fluid and a much smoother TOD engagemnt after using the synthetic fluid in my Trooper.
Hope that helps.

TOD Transfer case 2.2 quarts +/-
Tranny 9.5 quarts +/-

Also Mobil 1 make a synthetic gear oil, perfect for the limited slip or regular front and rear diffs.

How about fluid capacity for front and rear diff....might as well do the whole thing if I am going to be underneath