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Old 05-09-2011, 12:42 PM   #1
coastierider
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Pinion Seal

OK, I need some help getting the correct pinion oil seal, when i removed the yoke there was no pinion seal installed, which explains why the rear diff was covered in a thick oil/dirt sludge.... dont ask me why there wasnt one, cause i have no idea... i went to autozone and they gave me P/N 5778 (Timken), but it's not the right one and Rock Auto has 5 different P/N's, just wondering what the correct seal is..
1961 chevy apache c10



NAPA gave me seal P/N 17727 (SKF)
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Old 05-09-2011, 04:43 PM   #2
Wrenchbender Ret
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Re: Pinion Seal

From the photo it looks like the seal is still in there. The rubber part may be gone but I think the metal part is stiil there. Get the rest out & see if there is a number on it.
I can look it up tomorrow. It shouldn't be that much of a problem.
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Old 05-10-2011, 12:46 AM   #3
Captainfab
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Re: Pinion Seal

Yes, your seal is still there, but like Wrenchbender Ret said, the rubber may be gone. I can see in the pic the word 'NATIONAL' on there at about 11 O'clock, so just clean it off and get the number and crossreference it if need be. It also looks like you may need a speedy sleeve on the yoke.
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Last edited by Captainfab; 05-10-2011 at 12:47 AM.
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Old 05-10-2011, 08:49 AM   #4
lakeroadster
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Re: Pinion Seal

To install a speedy sleeve he would need to remove the pinion from the case, correct?
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Old 05-11-2011, 12:42 AM   #5
Captainfab
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Re: Pinion Seal

No, the speedy sleeve would be installed onto the seal surface of the yoke.


Quote:
Originally Posted by lakeroadster View Post
To install a speedy sleeve he would need to remove the pinion from the case, correct?
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Old 05-11-2011, 12:39 PM   #6
lakeroadster
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Re: Pinion Seal

Quote:
Originally Posted by Captainfab View Post
No, the speedy sleeve would be installed onto the seal surface of the yoke.
Gotcha, but do you just leave the speedi sleeve installation flange on the sleeve and then install the pinion lip seal?

I have used speedi sleeves for industrial applications, and we always removed the flange... but in this case I guess it would be ok to leave it?

http://www.vsm.skf.com/~/media/Files.../TT08_021.ashx

Thanks,

John

Last edited by lakeroadster; 05-11-2011 at 12:42 PM.
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Old 05-11-2011, 11:01 AM   #7
dallas71
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Re: Pinion Seal

Not to steal the thread but is there any gotchas when changing this seal??? I need to change mine but dont know if there is any impact or anything that I have to worry about other than just changing the seal....Can someone enlighten me please!! Thanks
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