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55 Chrysler trans shifter shaft seal replacement
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ram300
Posted 2021-02-04 5:10 PM (#608535)
Subject: 55 Chrysler trans shifter shaft seal replacement



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Has anyone had success installing a new seal where the shifter/kickdown shaft enters the trans on a 55 Chrysler Powerflite WITHOUT removing the trans from the car? Is it possible?

Also if anybody is able to give me size/ part number of that seal.

Thanks
Owen
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56D500boy
Posted 2021-02-04 7:31 PM (#608540 - in reply to #608535)
Subject: RE: 55 Chrysler trans shifter shaft seal replacement



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Location: Lower Mainland BC
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From a previous thread, I wrote:

"Based on this photo in my previous post, while I was back in the garage tinkering on my 56 Dodge, I decided to check the Powerflite more carefully.



I wiped the area off with a solvent soaked paper towel and discovered that there is a seal there for sure. It is marked 50018, SN (or NS?) and Pat. Pend. I measured a shaft diameter of 0.62" and an overall seal diameter of about 1.29" (give or take).

When I used the SKF parts search, a 50018 comes up as a National Mfg. Part Number: 50018 with a cross to a 6925 from National, Federal Mogul and Caterpillar. Dimensions are very close to what I measured and given that I didn't necessarily get the outside diameter measured correctly, I would believe the 1.254" more than my 1.29"

I think that the OE P/N for that seal is 1408 353 but the SKF interchange does not recognize the number. However when you Google "1408353 powerflite manual shaft seal" a bunch of hits come up, including one a MoparMall labeled 50018. Bingo. "

https://www.moparmall.com/product-p/kc-81204.htm









REFERENCE: http://www.forwardlook.net/forums/forums/thread-view.asp?tid=73997&...



Edited by 56D500boy 2021-02-04 7:41 PM
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ronbo97
Posted 2021-02-04 8:29 PM (#608541 - in reply to #608535)
Subject: Re: 55 Chrysler trans shifter shaft seal replacement


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Try NAPA before overpaying (+ shipping) for the same seal at Atlas/MoparMall. SKF 6925 is 9.00.

Ron
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jhermis1861
Posted 2023-05-22 11:44 AM (#629734 - in reply to #608535)
Subject: RE: 55 Chrysler trans shifter shaft seal replacement


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Posts: 5

Did you happen to replace yours? I am needing to replace mine as its leaking there as well.. I have the 50018 seal but just not a transmission guy and don't want to drop the transmission just to replace a seal... If you replaced yours, any pointers you could give me...

Thanks,
Jon
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tmd171
Posted 2024-03-21 11:54 AM (#634331 - in reply to #608535)
Subject: Re: 55 Chrysler trans shifter shaft seal replacement


Member

Posts: 15

Were you able to replace yours? How did you remove your seal?
Thanks
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56D500boy
Posted 2024-03-21 1:29 PM (#634335 - in reply to #634331)
Subject: Re: 55 Chrysler trans shifter shaft seal replacement



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It looks like a Lisle 58430 Shaft Type Seal Puller might work on these small seals in such a confined area.

https://www.lislecorp.com/specialty-tools/shaft-type-seal-puller



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dels56
Posted 2024-03-21 1:50 PM (#634337 - in reply to #608535)
Subject: Re: 55 Chrysler trans shifter shaft seal replacement


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Looks like a winner!
Del
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