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On my 4x4 6.0 I went to change the transfer cases fluid.
I was told at the parts store to just fill them to the fill hole and when it quits running out the fill hole, put the cap on it.
The manual just says to put a certain amount in the front and rear.
The auto parts guys said to fill it to the top. So that I did. Is that ok?? Is there such thing of overfilling a transfer case in the front and rear??
I filled mine to the overflow level - even though it was more than what the manual recommended. I have had no problems. I do not think either approach is bad - they would both be fine.
the reason i ask is i am pretty sure i filled it up in the front. Everytime I take the truck out, when I get home i smell a little bit of burnt oil. I didnt know if filling it to the hole makes the oil come out the vent or if its too low, it will make a burning oil smell?