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Differential side yoke seal size?

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Old Feb 7, 2025 | 01:55 PM
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Default Differential side yoke seal size?

Before I pull the diff out again can someone please help me out with the size of the seals? I put new seals in that were supplied from a vendor but for some reason there is black material coming off them and they are leaking. There are industrial bearing and seal suppliers locally so my preference is to buy known brand replacement seals from them if possible. Side yoke surface where the seal works was perfect and I applied lube to them on assembly so I'm sure they weren't torn up. PIA having to pull the thing out again.
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Old Feb 7, 2025 | 02:03 PM
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What fluid did you use and can you tell if the leak is from the yoke or around the seal where it sits in the case?
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Old Feb 7, 2025 | 08:41 PM
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Originally Posted by MelWff
What fluid did you use and can you tell if the leak is from the yoke or around the seal where it sits in the case?
I used 85/90W conventional LSD oil. Its not leaking around the outside of the seal I put them in with hi temp gasket sealer. I haven't seen seals that you could rub you finger across the rubber part and all of the black comes off on your finger. Also the pinion seal is fine.
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Old Feb 7, 2025 | 08:53 PM
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Not sure your year but here is my dif thread on a 79. Pic of seal?

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Old Feb 8, 2025 | 12:04 PM
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The axle seal from CR is #13562 according to my files, I am not in the shop today to pull one off the shelf but that is the number on my part list. However, that might be a typo on my number since 13569 does seem to come up on my NAPA account. Important Info: "0.313 Width; 1.375 Shaft Diameter; 2.000 Bore Diameter; 2.004 Outside Diameter Seal"
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Old Feb 8, 2025 | 04:32 PM
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Perfect, thanks very much
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