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Hello! to all, i have f250 4wd super duty, 03 year , vin 1ftnw21 p84eb7 1583 i have problem with dust seal ( at photo) Can any one tell me part number of this seal? Or may be any link on online catalog on my truck?
I try to google and find this part number F81Z-1S175-HCA is it correct?

766051
 

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That dust seal is useless and they never stay in. Assuming by the photo that you are trying to stop the diff fluid from leaking out?

If so, you need new axle seals. And in order to change them you need to pull the diff out.
 

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Discussion Starter #3
That dust seal is useless and they never stay in. Assuming by the photo that you are trying to stop the diff fluid from leaking out?

If so, you need new axle seals. And in order to change them you need to pull the diff out.
I have change all seals in hub, change seals in axles , and change other necessary parts 1 year ago, today i see some leak , check it and find that oil is leaking from that place on photo , i try to find part number in parts catalog but i can't find part number, start to google and find this thread

and wondering if this seal part number is correct? F81Z-1S175-HCA


If so, you need new axle seals. And in order to change them you need to pull the diff out. You mean that i need to change other seals? Can't understand you. Do you have part numbers ? Or may be drawings from parts catalog?
 

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Discussion Starter #4 (Edited)
and can you give me part number of inner axle seal ( i mean when i will pull off diff) i need to change inner seal . This is correct number ? 710492
766053
 

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Inner seals are EC3Z-3254-A
Outer vacuum seals are 3C3Z-3254-CA
Dust seals are F81Z-1S175-HCA
And hub o-rings are F81Z-4A322-AA
Carrier cap bolt torque spec is 80 lb-ft (109nm)

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Discussion Starter #7
Inner seals are EC3Z-3254-A
Outer vacuum seals are 3C3Z-3254-CA
Dust seals are F81Z-1S175-HCA
And hub o-rings are F81Z-4A322-AA
Carrier cap bolt torque spec is 80 lb-ft (109nm)

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thanks !
This parts 100% from my truck and my vin number )) ? Because i am from Russia and we don't have in stock this parts need to buy from USA and wait 1 month ) If i will buy wrong that will be big problem.

when I pull of diff and seals I can’t put it back together ))
 

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All looked up with your VIN#

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Discussion Starter #9
All looked up with your VIN#

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Thanks ! and can you explain me this:

You give this part number EC3Z-3254-A , rockauto cross number is 710865 look at photo
766054


and here is other photo from rockauto where other part number , and seal looks different. I open f250 03 year and 04 year
766055


then i open Information for 03 year ford f250 6.0 and find thsis part number NATIONAL 710492 .
AM I RIGHT that i have front axle dana 60 and that's why you write this part number? EC3Z-3254-A=710865 and it is correct?
 

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You do realize that your truck is an '04 not an '03?
Built 12/02/2003

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Ok, had to sign in on a real computer since pictures don't show on tapatalk
That second seal (710492) is a Dana 50 seal, your truck has a Dana 60
The EC3Z-3254-A seal is the updated inner seal for the Dana 60 all the way up to 2010
That washer set is a F81Z-3B458-AA
Since you're going to be in there anyway you might want to order (2) F81Z-3T695-AA axle guides yours are probably deteriorated and they do make getting the axle through the inner seal easier

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Discussion Starter #14
Ok, had to sign in on a real computer since pictures don't show on tapatalk
That second seal (710492) is a Dana 50 seal, your truck has a Dana 60
The EC3Z-3254-A seal is the updated inner seal for the Dana 60 all the way up to 2010
That washer set is a F81Z-3B458-AA
Since you're going to be in there anyway you might want to order (2) F81Z-3T695-AA axle guides yours are probably deteriorated and they do make getting the axle through the inner seal easier

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thanks bro this information is useful for me!!!
 

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No problem, I can't imagine trying to source Ford parts in a foreign country, it's hard enough sometimes here

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