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11-27-2016, 07:26 AM | #1 |
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Rear Axle Venting
One thing I've noticed on these Ford rear axles is they are not vented. Model T to 1948.
All later makes to today vent the rear axles. Did all these earlier Ford axles vent in a way I'm not seeing? |
11-27-2016, 09:45 AM | #2 |
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Re: Rear Axle Venting
The venting process is through the torque tube via the transmission.
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11-27-2016, 10:21 AM | #3 |
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Re: Rear Axle Venting
You know I thought that at first but then there is a seal within the torque tube up by the drive shaft bearing/ speedo drive gear.
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11-27-2016, 10:27 AM | #4 |
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Re: Rear Axle Venting
Does my 52 have a vent in the diff.? I just can't recall seeing one.
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11-27-2016, 10:49 AM | #5 |
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Re: Rear Axle Venting
It vents thru the hollow bolt that holds the brake line 'T' fitting to the axle housing.
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11-27-2016, 10:58 AM | #6 |
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Re: Rear Axle Venting
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11-27-2016, 11:30 AM | #7 |
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Re: Rear Axle Venting
When I installed a Mitchell in our 46 I had to add a rear end vent in addition to the vent that comes with the Mitchell..
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11-27-2016, 01:05 PM | #8 |
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Re: Rear Axle Venting
I've been pondering this exact topic recently. I was changing the rear axle gear lube in my 1.5 ton truck and noticed a venting of pressure when I removed the fill plug. The axle was at room temp (not warm from driving) when I did this. Does anyone make a vented fill plug for these bigger truck axles?
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11-27-2016, 02:21 PM | #9 |
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Re: Rear Axle Venting
Thanks,I should have remembered that as I must have had the block off when I replaced the brake line last year.
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11-27-2016, 04:12 PM | #10 | |
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Re: Rear Axle Venting
Quote:
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11-27-2016, 05:09 PM | #11 |
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Re: Rear Axle Venting
I put a vent in the (closed) drive shaft housing. Close to middle.
I had tried to put a vent using the fill plug, and also at the side of one of the bells, using a drilled bolt. All of these trials failed- oil came out. I drilled the tube put a fitting and a small fuel filter on that. Karl |
11-27-2016, 05:36 PM | #12 |
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Re: Rear Axle Venting
As Karl said, stay away from the center-section, it will throw oil out. Top of the axle housing is where I would put the vent. Run a tube (rubber hose) from the vent fitting to the height of the frame and then "J" it over. You don't want to pick up any water with the vent tube!
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11-27-2016, 08:48 PM | #13 |
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Re: Rear Axle Venting
So all those years Ford didn't have one?
It didn't vent out some place...... Interesting. |
11-27-2016, 11:26 PM | #14 |
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Re: Rear Axle Venting
I vented the driver side 36 bell in my avatar right wherexan 8 or 9" rear would be vented before I installed the open drive 3:54 center section using a vent from a 8 or 9" rear. I also drain the rear in my car every winter with all of the driving I do with it. Usually a 85-120 or so rear fluid works great for me ...
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