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willysmjeeps.com :: View topic - m 38 pinon seal
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m 38 pinon seal

 
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tttim
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Joined: Aug 13, 2024
Posts: 1

PostPosted: Tue Jan 07, 2025 8:24 am    Post subject: m 38 pinon seal Reply with quote

Happy New year ,
I have a 1952 m38
can I change the pinon seal without changing the crush sleeve?
thank you in advance


Hello Tim, I have relocated your post that asks a technical question from our Member's project board to our "Technical Questions" board.
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rgmutchler
Member


Joined: Sep 28, 2008
Posts: 350
Location: Caldwell, Texas

PostPosted: Tue Jan 07, 2025 8:32 am    Post subject: Reply with quote

I could be wrong but I don't think there is a crush seal. Just remove yoke and replace seal, replace yoke after checking seal contact area for wear.
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R G Mutchler
M274A5
M-38 MC13312
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wesk
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Joined: Apr 04, 2005
Posts: 16383
Location: Wisconsin

PostPosted: Tue Jan 07, 2025 11:29 am    Post subject: Reply with quote


Rear Axle Diff


Frt Axle diff
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

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Pierre
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Joined: Jun 01, 2021
Posts: 63
Location: Brome Lake, Qc, Canada

PostPosted: Wed Jan 08, 2025 5:58 pm    Post subject: Reply with quote

Make sure to check the yoke for any seal wear. If so use speedy sleeve #99155
Use indian Shellac when installing it...Also shellac around outside edge of new seal and a coat on yoke splines.

Leak proof it will be
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Pierre H.

full restoration in progress
1952 M38 MC60228
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wesk
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Joined: Apr 04, 2005
Posts: 16383
Location: Wisconsin

PostPosted: Wed Jan 08, 2025 10:55 pm    Post subject: Reply with quote

Here's a comparison of original style vs newer style seals.



Usually a leakage problem right after installing either of these seals will be caused by one of the following:

1 - Damaged seal lip during installation.
2 - Worn and/or grooved sealing surface on the yoke. (This can be addressed with a new "Speedie Sleeve" on your grooved yoke)
3 - Excessively worn and/or loose components.

Steps you should take to insure a leak free new seal installation are:

1 - Follow all directions carefully.
2 - Apply sealant carefully and sparingly only where the instructions tell you to.
3 - Apply grease to the yoke splines and the pinion spline.
4 - Insure the open edge of the seal lip that fits shaft tightest faces the gear oil source.
5 - Lubricate the seal lip before installation.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

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