Transfer case Lubricant
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Joined: Dec 2002
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Transfer case Lubricant
I have a 1980 F150 with a New Process 208 Transfer Case. The owners manual says to use Type F Auto tranny fluid in the transfer case. Haynes manual says to use Mercon in it and when I drained it, the fluid was gear oil-do not know the viscosity. Any help would be appreciated as I am waiting to refill until I get some answers here.
Thanks,
Scott
Thanks,
Scott
Moderator
Joined: Jan 2001
Posts: 56,999
Likes: 2,747
From: Virginia
Transfer case Lubricant
My 1980 has automatic transmission fluid in the transfer case. So I know that's right. But if I had to choose between Haynes and the owners manual, I would definitely pick the owners manual, unless somebody knows of a later change. I bet it really wouldn't make much difference which auto tranny fluid was in there. I had a mustang with a T5 5 speed and it took the Mercon.
Post Fiend
Joined: Jun 2001
Posts: 5,228
Likes: 5
From: Running Springs CA
Transfer case Lubricant
I dont think Mercon existed in 1980. The main difference is friction modifier. It makes no difference in a transfer case. Any ATF you have on hand will work for this application.
Jim
Jim
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
Transfer case Lubricant
If the original manual says Type F, I'd stick with that, unless it has ever been rebuilt, in which case I'd use Dexron/Mercon. The old seals may only handle Type F, but the new ones will definitely take D/M. In '83, the manual says Mercon.
Gear oil is just wrong.
Gear oil is just wrong.
