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How to replace shift shaft seal on 727 trans? #29456
09/02/06 10:37 PM
09/02/06 10:37 PM
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Sacramento, CA
cal_gecko Offline OP
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the shift shaft seal on the SuperCoupe is leaking pretty bad.. so I picked up a new one tonight, as well as a new trans pan gasket, in case I needed to remove that to get to the seal. ... what's the best way to replace this seal (trans is in the car)?

Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #29457
09/02/06 10:46 PM
09/02/06 10:46 PM

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R U sure it is this seal and not the small kickdown one ?

You can just put a deep pan on it ...and just lower the fluid level.

Re: How to replace shift shaft seal on 727 trans? #29458
09/03/06 12:55 AM
09/03/06 12:55 AM
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Sacramento, CA
cal_gecko Offline OP
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Uh.... no, I'm not sure... I didn't realize there was another seal there for the kickdown... crap. I had to special order the shift shaft seal... I know they won't have the kickdown seal in stock. What's the best way to replace these seals?

Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #29459
09/03/06 01:05 AM
09/03/06 01:05 AM

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Can you see if it is leaking on the high or low part of the shaft ?

The lower seal is a complex one. The upper seal is just a simple rubber one.

How you thought about a deep pan?

Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #29460
09/03/06 01:09 AM
09/03/06 01:09 AM
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Dillsburg, PA
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the easiest way is going to be taking the valve body out. remove snap ring and washer to remove and replace the kickdown seal. if you are careful take the kickdown rod out without removing the rooster. then you can polish the shaft because that is what kills that seal, rust and corrosion. the case seal you can knock out from the bottom and use a big c clamp and washer to draw the new seal in. i have done this many times. not too big or a deal.

howard
mrsmallblock

Re: How to replace shift shaft seal on 727 trans? [Re: mrsmallblock] #29461
09/03/06 01:20 AM
09/03/06 01:20 AM
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Sacramento, CA
cal_gecko Offline OP
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Quote:

the easiest way is going to be taking the valve body out. remove snap ring and washer to remove and replace the kickdown seal. if you are careful take the kickdown rod out without removing the rooster. then you can polish the shaft because that is what kills that seal, rust and corrosion. the case seal you can knock out from the bottom and use a big c clamp and washer to draw the new seal in. i have done this many times. not too big or a deal.

howard
mrsmallblock




what is 'the rooster'? I am not familiar with that term. I guess I'll see if I can get the rubber seal for the kickdown shaft too... I doubt I'll be able to find a parts store that has one in stock though.

Re: How to replace shift shaft seal on 727 trans? #29462
09/03/06 01:21 AM
09/03/06 01:21 AM
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Sacramento, CA
cal_gecko Offline OP
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Perhaps I should see if I can locate a deep pan... this seems like it's going to be a PITA

Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #29463
09/03/06 01:25 AM
09/03/06 01:25 AM
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Dillsburg, PA
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the rooser is actually the piece that goes through the case seal and the kickdown shaft goes throught the inside of the rooser. it has a check ball and spring that serves as the detent selector for your gears. if you remove the rooster it is a [Edited by Moparts - Keep it clean] to get it back in with the check ball and spring unless you have the tool for it.

howard
mrsmallblock

Re: How to replace shift shaft seal on 727 trans? [Re: mrsmallblock] #29464
09/03/06 01:29 AM
09/03/06 01:29 AM
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Dillsburg, PA
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i got censored for that comment? thats ridiculous. you can't say anything. not like i was directing the comment at somebody.

howard
mrsmallblock

Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #29465
09/03/06 01:40 AM
09/03/06 01:40 AM

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The deep pan is the plan .... just have the fluid show on the TIP of the stick.

Re: How to replace shift shaft seal on 727 trans? #29466
09/03/06 02:14 AM
09/03/06 02:14 AM
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Sacramento, CA
cal_gecko Offline OP
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Thanks.. I'll give the deep pan a shot.. it'll still shift ok, even if the fluid is low?

Re: How to replace shift shaft seal on 727 trans? [Re: mrsmallblock] #29467
09/03/06 02:42 AM
09/03/06 02:42 AM
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Texas
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#1 of 2. MASSIVE PICTURES (from TF 727 book..)

2893373-100_1020.jpg (1995 downloads)
Re: How to replace shift shaft seal on 727 trans? [Re: GoodysGotaCuda] #29468
09/03/06 02:42 AM
09/03/06 02:42 AM
Joined: Nov 2004
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Texas
GoodysGotaCuda Offline
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#2

2893374-100_1022.jpg (2592 downloads)
Re: How to replace shift shaft seal on 727 trans? [Re: GoodysGotaCuda] #29469
09/03/06 03:16 AM
09/03/06 03:16 AM
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Sacramento, CA
cal_gecko Offline OP
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Thanks, FluffyTwinkie!

Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #29470
09/03/06 03:18 AM
09/03/06 03:18 AM
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Texas
GoodysGotaCuda Offline
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Quote:

Thanks, FluffyTwinkie!




No problem, its not all that hard to pull the valve body. It is helpful to have someone around thats done it before if you get in a jam though.

Oh and the fluffytwinkie...im thinkin im due for a new name.


1972 Barracuda - 5.7L Hemi, T56 Magnum 6spd - https://www.facebook.com/GoodysGotaHemi
2020 RAM 1500
[img]https://i.imgur.com/v9yezP9.jpg[/img]
Re: How to replace shift shaft seal on 727 trans? [Re: GoodysGotaCuda] #29471
09/03/06 12:46 PM
09/03/06 12:46 PM
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if it is just the selector shaft seal
http://www.mytoolstore.com/kd/kdsusp05.html
Will do it with it still in the car.

Re: How to replace shift shaft seal on 727 trans? [Re: mrsmallblock] #29472
09/03/06 12:49 PM
09/03/06 12:49 PM
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Quote:

the rooser is actually the piece that goes through the case seal and the kickdown shaft goes throught the inside of the rooser. it has a check ball and spring that serves as the detent selector for your gears.
mrsmallblock



Re: How to replace shift shaft seal on 727 trans? [Re: 1100HPSmallBlock] #29473
09/03/06 01:42 PM
09/03/06 01:42 PM
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Brunswick, Jawgia
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IMO, the deep pan is a band aid for a bad seal on the trans. Fix it right the first time. You can do this seal replacement without pulling the valve body, dropping the pan and if the trans is clean you won't even get your hands dirty (much).

Take the kickdown and selector lever off the trans (both pinch bolts) and take a sharp pick to work the selector shaft seal out of it's hole and up the shaft. It's a press fit, so jab the pick through the top of the old seal and use leverage.

Take the new seal, lube it a little and slide it over the shaft until it sits evenly on the trans case, not cocked. Take a deep socket the same size as the seal and slide it over the shaft to rest on top of the seal. Tap the socket until the top of the seal is flush with the trans case. Re-install selector/kickdown levers.

I have done many this way. The worst I have had to do is un-bolt the trans crossmember to drop the end of the trans down for a little more room to work.

Jeff


70 Coronet- turbocharged 360/518/3.73 SG
Re: How to replace shift shaft seal on 727 trans? [Re: Snailpower] #29474
09/03/06 02:25 PM
09/03/06 02:25 PM
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Rio Linda, CA
John_Kunkel Offline
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Quote:

IMO, the deep pan is a band aid for a bad seal on the trans.




The deep pan won't have any affect on leakage since the FULL mark remains the same regardless of pan capacity.


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Re: How to replace shift shaft seal on 727 trans? [Re: John_Kunkel] #29475
09/03/06 04:53 PM
09/03/06 04:53 PM
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Sacramento, CA
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Kirk_Ingram Offline
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Quote:

Quote:

IMO, the deep pan is a band aid for a bad seal on the trans.




The deep pan won't have any affect on leakage since the FULL mark remains the same regardless of pan capacity.



And the "band-aid fix" is to fill the trans with a couple quarts less. And the fill mark is now a GUESS. That will be a PITA for the next owner(s).

I doubt the shaft seal in the VB is the issue (but it has happened). See attached for a visual. (note: snap ring and washer removed) {If you want/need this seal, I'll mail one to you; I have more than I'll ever use)

Just pull the pan, valvebody and fix it properly, as others have stated. No reason to spend more money on an extra-capacity pan when it's not necessary. -K

2894458-DSCN0117.JPG (2510 downloads)

Death or Glory...it's just another story.
Re: How to replace shift shaft seal on 727 trans? [Re: Snailpower] #29476
09/03/06 05:14 PM
09/03/06 05:14 PM

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The deep pan is not the way to fix your problem! The seals are easy to change, just get the (KD) tool (Anderwh) listed and do it in the car. Drain some fluid out prior to doing it so you don't get covered in fluid. If you don't want to buy the tool, use a small screwdriver to pry out the old seal and a deep socket to hammer in the new seal.

Next time you need a small seal for your transmission, go to you local trans shop, they should have plenty of them.

Re: How to replace shift shaft seal on 727 trans? [Re: Kirk_Ingram] #29477
09/03/06 05:15 PM
09/03/06 05:15 PM

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A deeper pan that has more capacity .... filled at the same height as a stock pan ?

How many larger capacity engine oil pans are approached this way ?

REcalibrate your dip-stick then.

And very true .... putting a deep pan on to avoid leakage is a band-aid - and it IS more proper to FIX the ailment. But to some people that are DIY ... this job could be over-their-heads.

Just my

Re: How to replace shift shaft seal on 727 trans? #29478
09/03/06 07:20 PM
09/03/06 07:20 PM
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Minnesota
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We use the KD tool at our shop and it works great. There is a remover and installer included with the tool. The only part you have to remove is the shift levers. You can replace the smaller seal at the same time but you have to be careful after you remove the e-clip so that the shaft doesn't drop down into the pan. If it does it's not the end of the world, you just have to pull the pan off.

Re: How to replace shift shaft seal on 727 trans? [Re: THBear] #29479
09/03/06 09:56 PM
09/03/06 09:56 PM
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Sacramento, CA
cal_gecko Offline OP
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I'll make a trip to a local tool store and see if they have this tool you guys are talking about.. if not, I'll order it from that website.

The other seal that you've mentioned, the kickdown seal... any suggestions where to get that?

Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #29480
09/03/06 10:53 PM
09/03/06 10:53 PM

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kd seal ? ...stop by any trans shop. They should have a bunch of them. Those seals are very rarely changed by most rebuilders.

Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #29481
09/04/06 02:14 AM
09/04/06 02:14 AM
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Carmichael, CA
NotEnufGarage Offline
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I may be running by a friends transmission shop tomorrow. If so, I'll see if he has a seal.
I'll PM you if I get one.


'70 Charger FE5 Daytona Clone 451/727/D60
'70 Challenger FM3 440/833/3.55SG
'79 Ramcharger SE 360
'89 Shelby Dakota
‘06 PT Cruiser GT Convertible
‘07 Charger R/T Daytona
‘10 Ram 1500 ST Crew Cab

Yes, I'm a Dodge Boy. Verstehen?
Re: How to replace shift shaft seal on 727 trans? [Re: NotEnufGarage] #29482
09/04/06 03:26 AM
09/04/06 03:26 AM
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Sacramento, CA
cal_gecko Offline OP
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Awesome, thanks! I already have the shift shaft seal.. .just need the kickdown seal

Re: How to replace shift shaft seal on 727 trans? [Re: Kirk_Ingram] #29483
09/04/06 02:29 PM
09/04/06 02:29 PM
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Rio Linda, CA
John_Kunkel Offline
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Quote:

And the "band-aid fix" is to fill the trans with a couple quarts less.




Not a good idea. The TF, unlike the engine, can suck air if the VB-to-case mating surface is exposed to the air.


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Re: How to replace shift shaft seal on 727 trans? [Re: John_Kunkel] #29484
09/04/06 04:20 PM
09/04/06 04:20 PM

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Quote:

Quote:

And the "band-aid fix" is to fill the trans with a couple quarts less.




Not a good idea. The TF, unlike the engine, can suck air if the VB-to-case mating surface is exposed to the air.




I have always wondered about that....but if that was a major "issue" - why wouldn't the OEM have put some O-rings or a gasket in there?

Re: How to replace shift shaft seal on 727 trans? [Re: John_Kunkel] #29485
09/04/06 06:03 PM
09/04/06 06:03 PM
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Sacramento, CA
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Kirk_Ingram Offline
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Quote:

Quote:

And the "band-aid fix" is to fill the trans with a couple quarts less.




Not a good idea. The TF, unlike the engine, can suck air if the VB-to-case mating surface is exposed to the air.




Good point! -K


Death or Glory...it's just another story.
Re: How to replace shift shaft seal on 727 trans? #29486
09/04/06 06:05 PM
09/04/06 06:05 PM
Joined: Jan 2003
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Rio Linda, CA
John_Kunkel Offline
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Quote:

I have always wondered about that....but if that was a major "issue" - why wouldn't the OEM have put some O-rings or a gasket in there?




It's not a major issue if the mating surface stays submerged in fluid as it should with the correct fluid level.


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Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #29487
09/06/06 01:11 AM
09/06/06 01:11 AM
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Carmichael, CA
NotEnufGarage Offline
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Sorry - my buddy usually gets them in seal or rebuild kits and he didn't have any in stock.

I've got a /6 904 you could take one out of, if you want to try reusing a used one.


'70 Charger FE5 Daytona Clone 451/727/D60
'70 Challenger FM3 440/833/3.55SG
'79 Ramcharger SE 360
'89 Shelby Dakota
‘06 PT Cruiser GT Convertible
‘07 Charger R/T Daytona
‘10 Ram 1500 ST Crew Cab

Yes, I'm a Dodge Boy. Verstehen?
Re: How to replace shift shaft seal on 727 trans? [Re: NotEnufGarage] #29488
09/06/06 10:17 AM
09/06/06 10:17 AM
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Northern CA
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streetkit Offline
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Mark,

Last time I needed one, Autozone (of all places) had them in stock.


1973 Dodge D100
Re: How to replace shift shaft seal on 727 trans? [Re: streetkit] #29489
09/17/09 03:49 AM
09/17/09 03:49 AM
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Posts: 7,759
So Cal
HealthServices Offline
Why would you even post that?
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So Cal
I did this last year. Used a tool off ebay for less than $20



Something like this one

http://cgi.ebay.com/ebaymotors/KD-TOOLS-...d=p4506.c0.m245

I think I have pictures of the install posted a while back too. I had to use a C clamp because of the space limitations but I fixed it in less than an hour. No need to drop the pan.


Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.
Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #29490
09/17/09 04:19 AM
09/17/09 04:19 AM
Joined: Dec 2007
Posts: 7,759
So Cal
HealthServices Offline
Why would you even post that?
HealthServices  Offline
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Quote:

the shift shaft seal on the SuperCoupe is leaking pretty bad..




This is pretty bad...








Cleaned off.

Tool ready to remove seal...



Clamp to put pressure on seal while I turn the threads into the seal



After the tool takes hold of the seal you put the bolt into the top of the tool to pull the seal out....


click the picture for a larger view.

here is the picture of the seal removed



A closer look...



The new seal






New seal being installed with tool and clamp.




Linkage re installed.





Re: How to replace shift shaft seal on 727 trans? #29491
09/17/09 05:09 AM
09/17/09 05:09 AM
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Chilliwack B.C. Canada
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I just did this job on my son's Ramcharger yesterday. It took about an hour and a half. That included dropping the pan and valvebody, adjusting the bands, new filter. I find just about any old Mopar I buy needs this seal replaced. (and the trans always have a new pan gasket as that is what most people think is leaking).

Sheldon

Re: How to replace shift shaft seal on 727 trans? [Re: cal_gecko] #2324555
06/21/17 07:50 AM
06/21/17 07:50 AM
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Spokane, WA
FastbackJon Offline
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I am looking at replacing the shift shaft seal from the top with the extractor tool in my 1966 Charger 727.

I am hesitant in taking the two levers off (gear and throttle) from the shift shaft, not knowing if they are keyed are not. Or should I worry about this?

The throttle lever appears to be keyed but the gear lever, I can't tell. Will it just go back on the same as it came off and then I can just make minor adjustments to the horizontal rod to change shift selector (gear) position?

Thanks!

Re: How to replace shift shaft seal on 727 trans? [Re: FastbackJon] #2324578
06/21/17 09:43 AM
06/21/17 09:43 AM
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Originally Posted By FastbackJon
I am looking at replacing the shift shaft seal from the top with the extractor tool in my 1966 Charger 727.

I am hesitant in taking the two levers off (gear and throttle) from the shift shaft, not knowing if they are keyed are not. Or should I worry about this?

The throttle lever appears to be keyed but the gear lever, I can't tell. Will it just go back on the same as it came off and then I can just make minor adjustments to the horizontal rod to change shift selector (gear) position?

Thanks!
they can only go on one way,youll see that when you remove them.

Re: How to replace shift shaft seal on 727 trans? [Re: HealthServices] #2324647
06/21/17 12:27 PM
06/21/17 12:27 PM
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Nice instructive post, bow beer

Re: How to replace shift shaft seal on 727 trans? [Re: FastbackJon] #2324779
06/21/17 03:36 PM
06/21/17 03:36 PM
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Rio Linda, CA
John_Kunkel Offline
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Various shift levers and TP levers.

Shift_levers.jpgTP_levers.jpg

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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
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Arlington, Texas
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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
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Arlington, Texas
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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
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The Swamp
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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: 25,743
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
Too Many Posts

Joined: Jan 2003
Posts: 25,743
Rio Linda, CA

The two seals.

Shift shaft seals.jpg

The INTERNET, the MISinformation superhighway
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
master
Chris2581  Offline
master

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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