Rear Diff Fluid Topping Off

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Nov 11, 2011 | 04:02 PM

Sailor182

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From: Upstate of South Carolina

Rear Diff Fluid Topping Off

Team, I have a question? I have what I thought was a minor rear diff seal leak! So, I start to top off, and used 1 qt of fluid. Is this bad news? I am scheduled to have this seal repaired next Thursday. The rear diff did not appear to be that wet. Any opinions are welcomed.

Nov 11, 2011 | 04:45 PM

JOHN2001

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From: Temperance, MI

It could have been there for a long time and you didnt notice it. Just top it off. Youll be fine but I would check it every few days so you know just how bad it is and if its low again just fill it up until you can get it changed

Nov 11, 2011 | 05:33 PM

cj45lc

Cargo Master

Joined: Feb 2010

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From: Delta, CO

you did fill it at the plug on the driver side of the diff ?

a quart is about 1/3 of the total capacity of diff, I would be real surprised that the diff wasn't wet

Nov 11, 2011 | 08:11 PM

Bonanza35

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From: Norco,CA

Check the vent tube and make sure it is not blocked or pinched.
Chet

Nov 11, 2011 | 08:29 PM

Sheldon Plankton

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Joined: Oct 2009

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From: Dade City, FL

I've been there and done that with a pinion seal leak. Just keep it full from now on and don't worry about it. It got a little low and there's nothing you can do about it now. I would bet good money you won't have any further problems. I didn't.

Nov 11, 2011 | 08:47 PM

microdevil45

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From: Plant City

Quote:

Originally Posted by Bonanza35

Check the vent tube and make sure it is not blocked or pinched.
Chet

This is to keep it from pressurizing correct?

Nov 11, 2011 | 09:45 PM

JOHN2001

Logistics Pro

Joined: Dec 2010

Posts: 4,738

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From: Temperance, MI

Quote:

Originally Posted by microdevil45

This is to keep it from pressurizing correct?

Yes simple but affective

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Nov 12, 2011 | 12:45 PM

Sailor182

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From: Upstate of South Carolina

I went on a 300 mile trip pulling a heavy trailer at hyway speeds, went I got home and was updocking the trailer, saw spots of oil on my bumper, then noticed how wet the bottom of the diff was.

Nov 12, 2011 | 01:03 PM

#10

Bonanza35

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Joined: Sep 2005

Posts: 9,399

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From: Norco,CA

Quote:

Originally Posted by Sailor182

I went on a 300 mile trip pulling a heavy trailer at hyway speeds, went I got home and was updocking the trailer, saw spots of oil on my bumper, then noticed how wet the bottom of the diff was.

Sounds like the vent tube is blocked. Take it off blow thur it and replace. The clamp that held mine on was pinching the tube closed.

Chet