Front Axle: Gear Oil Coming Out Of 1 Side Only - Ford Powerstroke Diesel Forum
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post #1 of 17 Old 09-28-2013, 01:06 PM Thread Starter
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Question Front Axle: Gear Oil Coming Out Of 1 Side Only

Tearing down the front end of my '01 F-250 XLT 4x4 to do ball joints. I've got the front end of the truck on jack stands & both jacks are even & the front end of the truck is even. I noticed, after I pulled both axle shafts out, gear oil is only coming out of the passenger side of the axle tube & there's nothing coming out of the driver's side. I also noticed the inside the passenger axle tube, it's got an oil coating while the driver's side is rusted & has rust flakes in it. Neither side was leaking & the differential is dry. I rechecked to make sure the front end is sitting even from every angle possible & it's straight as an arrow. I looked inside the driver's side of the tube & there doesn't seem to be any blockage & I can see the gears inside the diff no problem. I just don't get it.

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post #2 of 17 Old 09-28-2013, 01:25 PM
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Sounds like the inner axle seal is shot... There shouldn't be oil inside the axle tubes. Did you notice oil slung on the passenger side brake caliper, spindle or fender wells before?

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post #3 of 17 Old 09-29-2013, 11:38 AM
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i have a very slow leak out of the passenger side as well after doing ball joints.

i check the fluid level and it is never low, but when it gets worse ill fix it.

time for newer inner axle seals. you have to replace both btw


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post #4 of 17 Old 09-29-2013, 06:14 PM Thread Starter
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Quote:
Originally Posted by RollinEarly99 View Post
Sounds like the inner axle seal is shot... There shouldn't be oil inside the axle tubes. Did you notice oil slung on the passenger side brake caliper, spindle or fender wells before?
Quote:
Originally Posted by blue99stroker View Post
i have a very slow leak out of the passenger side as well after doing ball joints.

i check the fluid level and it is never low, but when it gets worse ill fix it.

time for newer inner axle seals. you have to replace both btw
Rollin- There wasn't any oil on the brake caliper, but it probably dripped out about 3/4-almost a full pint the whole time the axles were out. When you say inner axle seal, is there a seal inside the diff or are you referring to the smaller seal pressed on the back side of the axle shaft itself? I just replaced both the small & larger seals that mount on the axle shaft while I was doing the ball joints. Is there another seal in the tubes I've got to check out? Thanks for you input, man!
Blue- Same thing; are there any seals beyond the 2 I'd replaced on the axle shafts?

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post #5 of 17 Old 09-29-2013, 06:38 PM
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The actual oil seals are inside the diff
Housing have to pull ring gear carrier out to replace them


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post #6 of 17 Old 09-29-2013, 06:50 PM
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^^^ what he said. I'll have the part numbers somewhere... The carrier needs pulled and a special tool is needed to seat them properly.

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post #7 of 17 Old 09-29-2013, 06:54 PM
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Here is a write up on replacing the inner axle seals along with the too, needed. The last post talks about making your own... Pretty simple really, but very important.

Dana 60 Inner seal - Diesel Forum - TheDieselStop.com

Here is a page with all parts, seals, and tools needed to complete the job...along with the ball joints

Ford Super Duty Ball Joint Replacement Procedure | Superdutypsd.com

05 F-250 Crew Cab Short Bed
ARPs w/OEM Gaskets
MTW Stage 2 w/batmowheel
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post #8 of 17 Old 09-29-2013, 07:02 PM Thread Starter
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Quote:
Originally Posted by dr.deere View Post
The actual oil seals are inside the diff
Housing have to pull ring gear carrier out to replace them


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Quote:
Originally Posted by RollinEarly99 View Post
^^^ what he said. I'll have the part numbers somewhere... The carrier needs pulled and a special tool is needed to seat them properly.
Quote:
Originally Posted by RollinEarly99 View Post
Here is a write up on replacing the inner axle seals along with the too, needed. The last post talks about making your own... Pretty simple really, but very important.

Dana 60 Inner seal - Diesel Forum - TheDieselStop.com

Here is a page with all parts, seals, and tools needed to complete the job...along with the ball joints

Ford Super Duty Ball Joint Replacement Procedure | Superdutypsd.com
EXCELLENT! Much appreciated, guys! I'll let you know how I make out. Thank you for the links.

"HEAVY" 2001 F-250 XLT 4x4 EC SB:
TW 6pos chip, S&B CAI, Monster 4" exhaust w/ Power Elbow, Big Head WGA, Technicooler, ITP boost fooler, Gen 1 Wicked Wheel, Six-Gun Tuner, Optima Yellow Tops, AutoMeter(Boost, Trans, EGT), CCV mod, MTS TC, MTS valve body, Trans Tech performance rebuild kit, TransGo shift kit, Hornblasters 242 Shocker Train Horns.


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post #9 of 17 Old 09-29-2013, 08:04 PM
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good luck!
i have read up on this before and it does not look like a particulary fun job


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post #10 of 17 Old 09-29-2013, 08:07 PM
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Quote:
Originally Posted by blue99stroker View Post
good luck!
i have read up on this before and it does not look like a particulary fun job
It's not to hard, it's just time consuming and can be frustrating when installing all the seals without the OEM tools.

05 F-250 Crew Cab Short Bed
ARPs w/OEM Gaskets
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BPD bypass oil filter
BPD FICM 58v
Spring Mod
Egr deleted
4" Duals
Edge CTS
Custom grille made by Me
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X3 w/Matts SRL+/SRLxx and Tow Tunes
Tony WildmanExtreme w/early lockup


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