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auto fluid in t case

General Tech Talk

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auto fluid in t case

Post by killalux »

can auto trans fluid be run in a hilux gear driven transfer case, i am running it behing an auto and i thought if i run same oil in both there would be less chance of the oil be contaminated.
thanks
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Post by offroader-rama »

gear oil for the transfer case is 80w +, transmission fluid 10-20w from memory, and if the oil is to thin then the gears/chain etc... will wear much faster and cause more heat etc and more prone to leaking i would think.
thats my train of thought on the matter any way so i would say a BIG NO
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Post by jeep97tj »

Jeeps run tranny fluid in there chain driven tcases
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Post by offroader-rama »

:shock: :oops: :shock: i'LL SHRUG MY SHOLDERS THEN
i dont know

actualy i run 30-40w engine oil in my gearbox and transfer in my patrol for smoother shifting doh i forgot about that I havent change it in a while should check it to see if its milky as i have being playing in some mud lately its never leaked a drop of oil either exuse my first post go the tranny fluid
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Post by trains »

Many tractors run auto trans fluid in their gearboxes, diffs and hydraulic systems.

Dont have my spec chart handy at the moment to say which ones etc.

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Post by -Scott- »

The viscosity ratings change for different "types" of oil. An 80W gear oil viscosity isn't double the thickness of a 40W engine oil, so it's possible a 20W trans oil is acceptable thickness for a manual trans.

FWIW, Mitsubishi specified an auto trans fluid for the 5 speed BW box in some Sigmas...
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Post by PGS 4WD »

Lots of late model gearboxes use trans oil as the balking rings are lined with the same material as auto trans clutches, such as the Tremec 6 spd in Current Ford and Holden.
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Post by its aford not a nissan »

late model patrols use tranny fluid in the transfer case and the early patrols use 70/80 and i think they are the same transfer cases i may be wrong though
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Post by MyGQ »

They are the same transfer case, no changes apart from some missing backlas gears in the later models.

i don't really like the idea of running auto trans fluid in the transfer case.
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Post by Dzltec »

What does the manufacturer specify?

I can list on monday.

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Post by its aford not a nissan »

they specify dextron auto fluid for late model patrol transfer boxes
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trans

Post by DR Frankenstine »

Old xw and xy falcon 3 speeds used trans fluid in there box's as well. My old case backhoe/tractor used trans fluid in its gearbox as well. I think trans fluid doesn't loose its viscosity and lubricating property's when hot like (normal) oil does.
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Post by bazooked »

auto tranny fluid is more of a hydraulic type fluid hence why it is used in auto boxes, in the later boxes they r a different set up. i no when my bro had a t5 box behind the windsor it farked up cause of the lack of lubrication the tranny fluid provided.
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Post by mud4b »

i used to use auto fluid in my sierra t-cases, it does the job better than normal gear oil. also in gear boxes run a mix of auto and gear oil as it makes it run cooler and shift nicer..
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