front axle leak - Ford Powerstroke Diesel Forum
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Old 07-29-2014, 05:42 AM
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front axle leak

hi to all
i have a 02 ford excursion diesel 4wd. i have notice that the front axle was leaking at the seal. i looked and the outer seal is loose.
what I'm looking to find out is there something else i have to change besides that outer seal at the knuckle.

if possible could you give me part numbers

thanks for your time
glen
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Old 07-29-2014, 07:40 AM
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Well, the Bad News is,,,, there Is No "Outer Seal"

Fluid retention is done at the center section. What you see is called a Dust Seal and barely does it's job. They All look like that.

Changing the oil seal in the Ft diff can be a project, and depending on how much fluid you're losing, I'd consider just topping-off a couple of times a year maybe.
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Old 07-30-2014, 05:51 AM
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That sucks
Does the seal need to be pressed in I would like it seated back in the knuckle to hopefully slow air stop the leak
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Old 07-30-2014, 06:18 AM
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No, no, no,,, I'm tellin' ya, you're wasting your time......

The Dust shield isn't going to hold-back ANYTHING. It isn't meant to, and there's a huge gap between it and the axle (not to mention you have to buy a $60 Knuckle Seal to get to it).

You have 2 choices;

Keep an eye on the fluid level and maintain it.

-OR-

Replace the Inner Seals (This requires pulling the axles, pulling the carrier out of the diff, installing new seals in there, and you'll be buying 2 Knuckle Seals - Dust Seals - and you might as well put new U-Joints while you have them in your hand, they're actually cheaper than the Knuckle Seals)
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Old 07-30-2014, 07:43 AM
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See your point
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