Transmission and Transfer Case Fluids
Fleet Mechanic
Joined: Feb 2001
Posts: 1,290
Likes: 15
From: Toronto, Canada
Transmission and Transfer Case Fluids
From what I can tell from the Haynes Manual, the transmission and transfer case fluids are the same: both SAE 140W oil.
Right now, the tranny fluid is red, while the tcase is brown, was this at one time the same fluid?
I believe that my tranny is the np435 and the tcase the np205.
Thanks
1978 F250 4x4 - 351M
Don't crush them, restore them!
Right now, the tranny fluid is red, while the tcase is brown, was this at one time the same fluid?
I believe that my tranny is the np435 and the tcase the np205.
Thanks
1978 F250 4x4 - 351M
Don't crush them, restore them!
Posting Guru
Joined: Aug 2000
Posts: 1,984
Likes: 2
Transmission and Transfer Case Fluids
[font size="1" color="#FF0000"]LAST EDITED ON 16-Apr-01 AT 09:38 PM (EST)[/font][p]Weld, see the post at Transmission and Transfer Case section, on "what weight gear oil". I found that the Haynes manual was wrong. The NP435 and 205 take 80W, and the diffs take 90W. The brown you see is probably gear oil, if it has a strong smell. The red sounds like ATF. I have heard of this being used, but wouldn't recommend it. I changed my tranny lube on Saturday, and it shifts much better. Good luck.
"Nothing lasts forever except natural stone and old Ford trucks." (Willie Nelson)
"Nothing lasts forever except natural stone and old Ford trucks." (Willie Nelson)
Senior User
Joined: Dec 2000
Posts: 127
Likes: 0
From: Coopersville
Transmission and Transfer Case Fluids
You know that if the tranfer case fluid is red, it may use automatic transmission fluid. The ownners manual for my '83 says to use Dexron II ATF in my NP208F transfer case. Of course they are also different transfer cases.
