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Old 09-06-2012, 11:50 PM   #1
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Question Front Differential Breather / Vent Tube Fitting -- Threaded or pressed in?

I am half-way into a D30 to D30 swap (a.k.a. a budget gear change). On prepping the "new" axle, I noticed that the diff breather tube fitting has been sheared off. In other words, what is left of it is now flush with the diff housing, so there is nothing there to connect the actual tube to.

Does anyone happen to know how this fitting is attached?

It is too hard to tell whether it is threaded in or pressed in. I have a 2001 TJ parts list PDF, and I can locate the part (it's 8350 4653) but still can't tell whether it is threaded or not.

I don't want to muck up the one on the "old" axle trying to figure it out. Should I use an easy-out or left-hand drill bit to remove the sheared-off one?

Thanks in advance.

Troy
2001 TJ 4.0

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Old 09-07-2012, 12:27 AM   #2
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Order the "new" part and see what it looks like.... that will dictate how to get the "old" part out......

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Old 09-07-2012, 07:50 AM   #3
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It's not a precision engineered part; just a way to equalize pressure in the diff when the fluid gets hot. I'd just drill it out and tap new threads to the next common size for brass swage/compression fittings. Get a nipple from home depot and stick a new piece of rubber hose on it.
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Old 09-07-2012, 03:01 PM   #4
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Mine just pushes in the housing.
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Old 09-08-2012, 11:25 AM   #5
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Thanks, all.

Troy
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