9" axle vent bolt
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Senior User
Joined: Jul 2017
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From: Fort Wayne IN
9" axle vent bolt
So over the weekend I found my bolt holding the brake hose to the axle was rusted and it broke. I was thinking I could just tap it out and move on but thanks to Good to Doo for reminding me this is also the axle vent.
So my thought is even if I can get the bolt out there is a good chance I could get trash(rust or metal shaving) in the axle so guessing it is a good time to flush axle.
Here is the bolt I think I need Anyone confirm that?
https://shop.advanceautoparts.com/p/...Term=axle+vent
My thought is I could remove gears and drain most of the oil, then lift the driver side of the axle a few inch higher then spray brake clean down the vent hole to flush all the trash out. Maybe bend the straw so it helps push every thing to the center. Allow it all to dry and refill with new oil.
Follow up question do I have to press the axle seals in on the 9" or can I just push them in by hand? Might be a good time replace those also.
So my thought is even if I can get the bolt out there is a good chance I could get trash(rust or metal shaving) in the axle so guessing it is a good time to flush axle.
Here is the bolt I think I need Anyone confirm that?
https://shop.advanceautoparts.com/p/...Term=axle+vent
My thought is I could remove gears and drain most of the oil, then lift the driver side of the axle a few inch higher then spray brake clean down the vent hole to flush all the trash out. Maybe bend the straw so it helps push every thing to the center. Allow it all to dry and refill with new oil.
Follow up question do I have to press the axle seals in on the 9" or can I just push them in by hand? Might be a good time replace those also.
Elder User
Joined: Feb 2014
Posts: 878
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From: british columbia, canada
The seals go on the axel first, then press the bearing on. AS far as the vent bolt, try an easy out first, Taking the diff apart is a lot of work. Also if you do pull it apart, put a drain plug in at the same time.
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Senior User
Joined: Jul 2017
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From: Fort Wayne IN
I did notice when I did my rear brakes I didn't see any oil leaking so might be good or might have been setting for a while and it didn't show.
Never rebuilt a axle so this could be a fun job or a total pain in the butt.
Never rebuilt a axle so this could be a fun job or a total pain in the butt.
Ford Parts Specialist
Joined: Nov 2006
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From: Simi Valley, CA
D1OZ-4022-A (replaced C2OZ-4022-A) .. Rear Axle Vent - 7/16" -20 x 2 1/8" long / Obsolete
1962/79 FoMoCo Passenger Cars with 8" & 9" rear axles; 1962/83 F100 w/9" rear axle; 1969/74 E100/200 w/9" rear axle; 1975/86 F150 & 1975/87 E100/150 w/9" rear axle.
1980 Granada/Monarch with 8" & 9" rear axles; 1980 Versailles w/9" rear axle.
1970/74 F250 with Dana 60 & 61 rear axles; 1970/74 F350 with Dana 70 rear axle.
1962/79 FoMoCo Passenger Cars with 8" & 9" rear axles; 1962/83 F100 w/9" rear axle; 1969/74 E100/200 w/9" rear axle; 1975/86 F150 & 1975/87 E100/150 w/9" rear axle.
1980 Granada/Monarch with 8" & 9" rear axles; 1980 Versailles w/9" rear axle.
1970/74 F250 with Dana 60 & 61 rear axles; 1970/74 F350 with Dana 70 rear axle.
Elder User
Joined: Oct 2016
Posts: 712
Likes: 1
From: Mesa, AZ
D1OZ-4022-A (replaced C2OZ-4022-A) .. Rear Axle Vent - 7/16" -20 x 2 1/8" long / Obsolete
1962/79 FoMoCo Passenger Cars with 8" & 9" rear axles; 1962/83 F100 w/9" rear axle; 1969/74 E100/200 w/9" rear axle; 1975/86 F150 & 1975/87 E100/150 w/9" rear axle.
1980 Granada/Monarch with 8" & 9" rear axles; 1980 Versailles w/9" rear axle.
1970/74 F250 with Dana 60 & 61 rear axles; 1970/74 F350 with Dana 70 rear axle.
1962/79 FoMoCo Passenger Cars with 8" & 9" rear axles; 1962/83 F100 w/9" rear axle; 1969/74 E100/200 w/9" rear axle; 1975/86 F150 & 1975/87 E100/150 w/9" rear axle.
1980 Granada/Monarch with 8" & 9" rear axles; 1980 Versailles w/9" rear axle.
1970/74 F250 with Dana 60 & 61 rear axles; 1970/74 F350 with Dana 70 rear axle.
^^This guy is awesome. Jumps into every thread with part#s. Every automotive site needs a Numberdummy
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Mountain Pass
Joined: Feb 2004
Posts: 209
Likes: 61
Check out # F5UZ-4022-A 7/16-20x2
Your local Ford dealer probably has it right on the shelf. $7.97 list price. Ford supplies them in packages of two.
Your local Ford dealer probably has it right on the shelf. $7.97 list price. Ford supplies them in packages of two.
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