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Old 10-31-2016, 01:38 PM   #1
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Rear differential seal?

Im looking to find a write up on how to and maybe tools needed to replace the rear differential seal. This isnt the big pumpkin seal but the other end where the drive shaft hooks into the differential. Can anyone point me in the correct direction for the proper info on this repair? Ive got a small drip going on, funny, all Ive been doing lately is replacing seals. When one goes they all seem to go in the drive line. LOL. This is for a 2005 E-350 6.0
Thank you!
Tracey
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Old 10-31-2016, 01:57 PM   #2
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Full float or semi-float? It's probably a Dana60 but could be a dynatrac? Anyhow, to be sure find the BOM #. http://differentials.com/wp-content/.../EB_AxleID.jpg

Then, you can use this link to find the part's schematic for your axle: Dana Holding Corporation - The Expert Axle Bill of Material

Another handy link: Axle Builder | Dana 60 Axle Parts and Upgrades
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Old 10-31-2016, 01:59 PM   #3
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Its a semi float.
Thanks Joe! Appreciate the info!
Tracey
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Old 10-31-2016, 03:04 PM   #4
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TraceyAZ
The seal you mention is called the pinion seal.

I would first check the vent and make sure it is not blocked
(a blocked vent can cause pressure to build and result in oil being forced past the seals.)

To change the pinion seal you must remove the drive shaft ,pinion nut ,and pinion yoke .

Take note of the orientation of the yoke to the pinion shaft (reinstall the yoke in the same position as when you removed it.)

remove the pinion nut

Inspect the yoke where the seal rides for signs of wear.

Remove the pinion seal.

Clean the area where the seal rests.

Coat the rubber portion of the seal with grease.

Apply a small amount of black PERMATEX form-a-gasket on the metal portion of the seal where it contacts the diff. housing.

install the seal
install the yoke
install the pinion nut (torque to specs 250 ft-lbs ) use locktite
install the driveshaft

Step-By-Step Pinion Seal Replacement - Anti-Ooze
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Old 10-31-2016, 04:43 PM   #5
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Quote:
Originally Posted by JackTuppVan View Post
TraceyAZ
The seal you mention is called the pinion seal.

I would first check the vent and make sure it is not blocked
(a blocked vent can cause pressure to build and result in oil being forced past the seals.)

To change the pinion seal you must remove the drive shaft ,pinion nut ,and pinion yoke .

Take note of the orientation of the yoke to the pinion shaft (reinstall the yoke in the same position as when you removed it.)

remove the pinion nut

Inspect the yoke where the seal rides for signs of wear.

Remove the pinion seal.

Clean the area where the seal rests.

Coat the rubber portion of the seal with grease.

Apply a small amount of black PERMATEX form-a-gasket on the metal portion of the seal where it contacts the diff. housing.

install the seal
install the yoke
install the pinion nut (torque to specs 250 ft-lbs ) use locktite
install the driveshaft

Step-By-Step Pinion Seal Replacement - Anti-Ooze


Excellent! I was hoping it was gonna be just like the rear output seal on the transfer case, Just did that one last week! Just wasnt 100% and never hurts to ask questions! Thanks to Joe I was able to ID what rear diff I have, now its off to the dealership to get the parts! What sucks is I just did a fluid change on this a couple months ago....GRRR, no sign of it leaking then...LOL
Thank you Jack!
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Old 10-31-2016, 05:07 PM   #6
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You can find those parts much cheaper online (RockAuto and the like) or at Napa than from the dealership. Axle seals and bearings and such were not made by Ford. They were made by Dana Spicer for Ford. The same D60 axle is found on Dodge and the like. One reason it's easy to get the wrong part #. Just say'n. And good stuff JackTupp!
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Old 11-03-2016, 08:04 PM   #7
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Quote:
Originally Posted by JackTuppVan View Post
TraceyAZ
The seal you mention is called the pinion seal.

I would first check the vent and make sure it is not blocked
(a blocked vent can cause pressure to build and result in oil being forced past the seals.)

To change the pinion seal you must remove the drive shaft ,pinion nut ,and pinion yoke .

Take note of the orientation of the yoke to the pinion shaft (reinstall the yoke in the same position as when you removed it.)

remove the pinion nut

Inspect the yoke where the seal rides for signs of wear.

Remove the pinion seal.

Clean the area where the seal rests.

Coat the rubber portion of the seal with grease.

Apply a small amount of black PERMATEX form-a-gasket on the metal portion of the seal where it contacts the diff. housing.

install the seal
install the yoke
install the pinion nut (torque to specs 250 ft-lbs ) use locktite
install the driveshaft

Step-By-Step Pinion Seal Replacement - Anti-Ooze

Any idea what size that pinion nut is? Not in my normal range of socket sizes!
Tracey
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Old 11-03-2016, 08:10 PM   #8
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Originally Posted by TraceyAZ View Post
Any idea what size that pinion nut is? Not in my normal range of socket sizes!
Tracey
Could be wrong but I think 1 5/16. And an impact socket won't fit. Too thick.
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Old 11-03-2016, 08:34 PM   #9
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Could be wrong but I think 1 5/16. And an impact socket won't fit. Too thick.
That's what my caliper was telling me as well, just seemed like an oddball size, or I was doing it wrong. lol
Looks like a trip to the local tool cage.
Thanks Joe!
Tracey
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Old 11-03-2016, 08:42 PM   #10
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Quote:
Originally Posted by JoeH View Post
Could be wrong but I think 1 5/16. And an impact socket won't fit. Too thick.
You're right It's 1 5/16 thin wall socket.

more detailed information here Best socket for D60 pinion nut? - Pirate4x4.Com : 4x4 and Off-Road Forum
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