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Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #2325336
06/22/17 05:41 PM
06/22/17 05:41 PM
Joined: Jul 2004
Posts: 3,799
Arlington, Texas
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bobby66 Offline
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bobby66  Offline
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Joined: Jul 2004
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Arlington, Texas
Drop the valve body and tap out the seal from underneath. Pull the new one in with a piece of threaded rod, two nuts, and two washers. Easy project and a good time to adjust the bands, while you're already soaked with ATF.

Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #2325337
06/22/17 05:42 PM
06/22/17 05:42 PM
Joined: Jul 2004
Posts: 3,799
Arlington, Texas
B
bobby66 Offline
master
bobby66  Offline
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Joined: Jul 2004
Posts: 3,799
Arlington, Texas
Drop the valve body and tap out the seal from underneath. Pull the new one in with a piece of threaded rod, two nuts, and two washers. Easy project and a good time to adjust the bands, while you're already soaked with ATF.

Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #2326266
06/25/17 12:19 AM
06/25/17 12:19 AM
Joined: Jan 2003
Posts: 6,840
The Swamp
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Sixpak Offline
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Sixpak  Offline
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Posts: 6,840
The Swamp
IIRC correctly there's TWO seals - one that seals the large shift lever shaft to the case, and a 2nd seal, an "o-ring" type of seal for lack of a better tem for it(and not a metal cased one) for the kd shaft that runs thru the center of the larger shaft that is sealed by the larger washer. I'd drop the valve body and change both, for piece of mind. The 2nd seal is under the e clip and washer.

Re: How to replace shift shaft seal on 727 trans? [Re: Sixpak] #2326532
06/25/17 06:14 PM
06/25/17 06:14 PM
Joined: Jan 2003
Posts: 25,618
Rio Linda, CA
John_Kunkel Offline
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John_Kunkel  Offline
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Posts: 25,618
Rio Linda, CA

The two seals.

Shift shaft seals.jpg

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Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #2327049
06/26/17 05:37 PM
06/26/17 05:37 PM
Joined: Jan 2003
Posts: 6,531
Jacksonville, FL
Chris2581 Offline
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Chris2581  Offline
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Joined: Jan 2003
Posts: 6,531
Jacksonville, FL
I just use a small pick and get them out.


Nautilus Racing-
We use Superformance gaskets and Turbo Action converters/products.
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