Transfer case questions
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Junior User
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From: Sandia Park, New Mexico
Transfer case questions
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I have a F250 4x4. How do I tell what T case I have? I want to add oil or possibly change the oil in the T case, any recommendations for this? Oil type & changing it vrs adding more. I don’t remember seeing a drain plug but only a cover plate. (not positive) If the cover plate is how it’s drained will I need a new gasket?
Thanks,
P/T
fficeffice" /><o></o>I have a F250 4x4. How do I tell what T case I have? I want to add oil or possibly change the oil in the T case, any recommendations for this? Oil type & changing it vrs adding more. I don’t remember seeing a drain plug but only a cover plate. (not positive) If the cover plate is how it’s drained will I need a new gasket?
Thanks,
P/T
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Junior User
Joined: Nov 2005
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From: Sandia Park, New Mexico
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Posting Guru
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From: the side of a mountain
thats what i was thinking but that is what haynes says. it says that for manual trans and transfercase which i know is wrong for the np-203 it needs something along the lines of 30w with no detergent. ok i did a search and came up with anything from 50W to 90W someone else also had the same info i did.
https://www.ford-trucks.com/forums/s...ght=NP+205+oil
https://www.ford-trucks.com/forums/s...ght=NP+205+oil
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Cargo Master
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I don't think you'd want to run 140 up north, that stuff would be like mud in the cold, but I'v always run 90 in my standards and transfercases in New england and never had an issue. On a real cold day the tranny is a bit stiff when you first start it up but it thins out pretty quick. Has anyone been running the synthetics? that is probably the way to go.
Posting Guru
Joined: Sep 2003
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From: lino lakes, mn
plow truck you have a 205 I've used amziol sythetic 85w-90w in my 75 & 76 since 93 I plow with the 75 and use the sythetic in my diffs and when it had a 4sp in I also used it in the tranny never had any trouble and it' s not stiff when you start moving at 20 below the service manual and owners manual say "Tranfer case-4wheel drive and 4-speed manual transmission above 0 degrees f SAE 50,below 0 degrees f SAE 30
Posting Guru
Joined: Feb 2002
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From: Cleveland, WI USA
I just filled mine last night with 85w140, and it's only about 20 deg. outside. I don't have an owners manual so I used what my Haynes manual said (140 wt). It's not as thick as I thought it would be.
K.
K.
Post Fiend
Joined: Jul 2003
Posts: 11,945
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From: Spokane, WA
I think I'm using the 85/140 also. It is fairly thick but remember you're not pumping it through oil galleries in an engine. It just sits in the case and gets flung around by the gears in there. You want it to coat well to keep the bearings lubed.
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