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03-22-2020, 08:26 PM | #1 |
Member
Join Date: Mar 2020
Location: Charlotte NC
Posts: 63
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31 Model A rear end seals
Hello, I’ve pulled the left side axle housing off and removed the entire axle. I’m wanting to replace the seals to keep the rear end grease from leaking into my drums. I have the 2 correct seals I believe. They are about an inch to inch 1/4 in diameter, red on outside with rubber on inside but I can’t figure out where the old ones are at to remove those. Thanks in advance
Carroll Last edited by Cpuckett; 03-22-2020 at 08:36 PM. |
03-22-2020, 08:54 PM | #2 |
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Join Date: Apr 2011
Location: Davenport, Iowa
Posts: 2,109
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Re: 31 Model A rear end seals
Check your private messages in the upper right corner on this web page for the recommended seal removal and installation procedure.
Marshall |
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03-22-2020, 08:57 PM | #3 |
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Join Date: Mar 2020
Location: Charlotte NC
Posts: 63
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Re: 31 Model A rear end seals
Marshall, thank you VERY much!!
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03-23-2020, 05:48 AM | #4 |
Senior Member
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Re: 31 Model A rear end seals
Those seals don't prevent the rear axle lube from getting to the drum, they redirect the grease from the rear bearing grease fitting out toward the rear bearing. If they are not there, you will pump the grease into your axle hsg. Trace it and you will figure it out.
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03-23-2020, 11:21 AM | #5 |
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Join Date: Jun 2010
Location: Temecula, CA
Posts: 4,085
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Re: 31 Model A rear end seals
Sounds like you need to replace the larger seal that are in the hubs of the drums. Face the lip towards the bearing, the little ones you have face outward to keep the grease from entering the diff, as Jackson says.
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03-23-2020, 11:51 AM | #6 | |
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Join Date: May 2010
Location: Southern California
Posts: 3,131
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Re: 31 Model A rear end seals
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Quote:
I have taken hundreds of rear axle assemblies apart and found the lack of any differential oil reaching much past the carrier, even with the grease seals shot. On the other hand I have also found that an owner who continually pumps grease in through the grease fittings with both axle seals shot has caused the grease to travel down the axle shaft where it centrifuges around the axle. the more grease pumped in the farther it travels toward the differential and the larger is the diameter of grease around the axles. One way differential oil can reach the brakes is if you have a Borg Warner overdrive installed. Most used a Model A axle grease seal as the rear oil seal riding on an unmachined area of the stub shaft. Over time oil gets past the seal and into the differential and the more oil added to the overdrive the more the oil level rises in the banjo. Tom Endy |
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