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Ford 9N, 2N & 8N Discussion Forum
:

Rear Axle Seals ?

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chuckzig

05-16-2020 05:26:06




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Currently Restoring a 1952 8N. When I took apart the rear axle assemblies I discovered 2 different seal assemblies. One side with the Outer retainer (A8NN4248A), the other without and grease packed bearing which appeared to have the other seal "assembly". The axle and hub with the grease is worn to the point that it needs to be replaced. The hub must have been replaced at some point evident by only 2 bolts to attach the brake housing. My serial number conflicts with the part number above and am wondering does it really matter which style to go with. I do not want to pack bearings if I do not have to.

Thanks for any input.

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jimtrs

05-16-2020 10:02:03




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 Re: Rear Axle Seals ? in reply to chuckzig, 05-16-2020 05:26:06  
Quoting Removed, click Modern View to see

Agree with JMOR.

If your axle housings take the inner seal (should if they're the correct housings for a 52), I would use the inner seals and pack the bearings with grease. Then keep your hydraulic oil level correct or even a little low. This keeps oil from constantly being against the seal, which would eventually leak past the seals and soak your brakes. I personally like grease better than oil for wheel bearings anyway.

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JMOR

05-16-2020 08:18:39




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 Re: Rear Axle Seals ? in reply to chuckzig, 05-16-2020 05:26:06  
Quoting Removed, click Modern View to seejust the opposite, I would say.



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chuckzig

05-16-2020 08:13:00




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 Re: Rear Axle Seals ? in reply to chuckzig, 05-16-2020 05:26:06  
Thanks for the confirmation. I thought that would be the case. Any argument for differential lube versus grease?



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JMOR

05-16-2020 08:01:39




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 Re: Rear Axle Seals ? in reply to chuckzig, 05-16-2020 05:26:06  
Quoting Removed, click Modern View to seeNecessary, because once you have the inner seal, then the differential lube can not reach the bearing.



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chuckzig

05-16-2020 07:30:31




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 Re: Rear Axle Seals ? in reply to chuckzig, 05-16-2020 05:26:06  
Yes I believe you are correct. Its the greased hub bearing that is throwing me off a bit? I have the service manual coming to glean some more info.



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JMOR

05-16-2020 07:21:43




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 Re: Rear Axle Seals ? in reply to chuckzig, 05-16-2020 05:26:06  
Quoting Removed, click Modern View to seeBy '52, it should have both inner & outer axle seals. Inner in end of trumpet and outer outside of bearing retainer. I am guessing that you are seeing a different outer type on left vs right side?



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