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Old 09-06-2012, 11:50 PM   #1
Join Date: Aug 2010
Posts: 2
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.

2001 TJ 4.0

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Old 09-07-2012, 12:27 AM   #2
bc3_Jeep's Avatar
Join Date: Nov 2010
Location: NE corner of Iowa
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Order the "new" part and see what it looks like.... that will dictate how to get the "old" part out......

"For Gawd's sake, put a RELAY in there or you could burn the whole damn Jeep to the ground" ...this quote brought to you by people who do not understand the law.....Kirchoff's, Ohm's, or Faraday's.
Violation of KISS shall always ring false in TRUE engineering. - ME___
Had 75CJ5, 89YJ, 93YJ. Have 82CJ7 & 95YJ____Not one burnt yet due to lack of relays.
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Old 09-07-2012, 07:50 AM   #3
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Location: North NJ
Posts: 2,156
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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Location: Yucca Valley CA 20 miles from JV
Posts: 2,362
Mine just pushes in the housing.
Violence may not be the answer but it sure cuts down on the stupid questions
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Old 09-08-2012, 11:25 AM   #5
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Thanks, all.

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