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Breather/vent tube for transfer case. Judging by it hanging down someone forgot to bolt it to upper transmission bellhousing bolt. I think in the 11 oclock position.
 

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Discussion Starter · #5 ·
Breather/vent tube for transfer case. Judging by it hanging down someone forgot to bolt it to upper transmission bellhousing bolt. I think in the 11 oclock position.
Is it important? Or what’s the purpose for it ? To not overheat?
 

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2011 Ram 2500 4x4 6.7 68RFE 4 inch lift
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When the fluid gets hot, it expands, so does the hot air and it keeps the seals from blowing out.
 

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The transfer case is usually the lowest vented enclosure on a truck and is a little more exposed. The tube elevates the vent opening so the t-case can be submerged and not flood and puts the opening in a typically dry place where it won't pick up road debris and water.
 
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