Rear Diff. Vent
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Rear Diff. Vent
Guys/Gals,
Where is the vent on the rear diff at? I crawled up under it today just to recheck my diff. fluid after finding out it was a qt low...I saw no vent.
Plz let me know..
Big Rig
Where is the vent on the rear diff at? I crawled up under it today just to recheck my diff. fluid after finding out it was a qt low...I saw no vent.
Plz let me know..
Big Rig
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NoMo is right. the vent holds the little brake lining "T" to the axle on the driver's side of the rear axle. The rubber hose from the vent is clipped to the frame. When you lookat it quickly that rubber hose looks like a brake line.
Thanks for the excuse to look under my truck. Take care.
Thanks for the excuse to look under my truck. Take care.
Last edited by Wrenchtraveller; Aug 24, 2005 at 09:16 PM.
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Thanks Guys,
Just looked and found it right where you said. It was not plugged at all...Not sure why it was a quart low???
Is the only way water can get into the rear diff is thru this vent tube?
Big Rig
Just looked and found it right where you said. It was not plugged at all...Not sure why it was a quart low???
Is the only way water can get into the rear diff is thru this vent tube?
Big Rig
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From: Home Base Nebraska
Big Red When you checked your level how low was it in the case, it should have been about 3/8 of a in below the fill plug. When I had my pinion seal leaking a little bit I filled it to the plug hole before it was fixed under warranty and was told by a friend and long time Ford mechanic (45 years)that I had it over filled plus I put the wrong grease in it so I had to have the hole thing flushed and refilled at my expense.
Denny
Denny
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RVPULLER,
It was a good qt low...When I stuck my pinky finger inside of the hole, I did not get fluid on my finger until I was up to my middle knuckle on my pinky finger. I'd say, when I put a qt in, it is just about 1/8" below the filler plug, maybe a bit more.
Big Rig
It was a good qt low...When I stuck my pinky finger inside of the hole, I did not get fluid on my finger until I was up to my middle knuckle on my pinky finger. I'd say, when I put a qt in, it is just about 1/8" below the filler plug, maybe a bit more.
Big Rig
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From: Long Island USA
Originally Posted by rvpuller
Big Red When you checked your level how low was it in the case, it should have been about 3/8 of a in below the fill plug. When I had my pinion seal leaking a little bit I filled it to the plug hole before it was fixed under warranty and was told by a friend and long time Ford mechanic (45 years)that I had it over filled plus I put the wrong grease in it so I had to have the hole thing flushed and refilled at my expense.
Denny
Denny
What the owner's manual called for brought it right up to the bottom of the hole. Not more, not less, exact. Well, OK, maybe 1/8" below the hole
To the original poster:
Could be the previous owner had it changed, and the shop used the wrong spec to refill it. Or the PO didn't put enough in, etc.
If there's no obvious leaks, top it off (or better yet, drain it and refill).
The ways water can get into the axle, well, in a perfect world, it wouldn't.
However, condensation can build up, a wheel bearing or pinion seal (or axle stub) leaks, or you drive through enough water to submerse the breather (and your frame
).No matter what I put my '74 highboy through, I never got water in the rear end. The front-end was a different matter
