Author Topic: 727 Yoke seal replacement  (Read 2375 times)

Offline Katfish

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727 Yoke seal replacement
« on: June 29, 2008 - 02:03:10 PM »
My rear seal (part where driveshaft slides in) is leaking, FSM says to use "special" tools to remove and replace the seal.  Any advice on how to do this without the tools?

Thx
« Last Edit: June 29, 2008 - 02:10:56 PM by Katfish »




Offline Moparal

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Re: 727 Yoke seal repalcement
« Reply #1 on: June 29, 2008 - 02:07:47 PM »
I use a screw driver or punch to knock it out and a big socket to install

Offline Katfish

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Re: 727 Yoke seal replacement
« Reply #2 on: June 29, 2008 - 02:11:58 PM »
Similiar deal as wheel bearing seal?  Just work slowly around with screwdriver to get it out?

Offline Chryco Psycho

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Re: 727 Yoke seal replacement
« Reply #3 on: June 29, 2008 - 02:23:00 PM »
similar deal just work around the seal , make sure you don`t scar inside where the seal sits

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Offline Katfish

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Re: 727 Yoke seal replacement
« Reply #4 on: June 29, 2008 - 04:14:14 PM »
OK, I got it out.  But I don't feel too good about getting the new one seated.  There is very limited room to work, exhaust comes together right there with an H-pipe.

Any suggestions on getting it seated square with limited room?

Offline ntstlgl1970

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Re: 727 Yoke seal replacement
« Reply #5 on: June 29, 2008 - 07:47:04 PM »
big socket, short piece of pipe etc. and a hammer. and take your time of course  :thumbsup:
70 Cuda, 7.0L Gen-III Hemi, Viper T56 w/9310 gearset, 3.91's, Megasquirt MS3x v3.57, Innovate wideband, Firm Feel upper arms, torsion bars, springs and strut rods, QA1 DA shocks. I did everything on this car except the fancy paint stuff and I drive it...and I can't seem to stop messing with it....

Offline hemiken

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Re: 727 Yoke seal replacement
« Reply #6 on: June 29, 2008 - 08:07:34 PM »
 :iagree: or another way if you do not have a socket is to drill a hole through a piece of wood with the correct size hole saw and fit it around and over the seal to fit................... :cooldancing:
1970 Barracuda   (O^--^===|===^--^O)
1971 Barracuda   (O O {]{]{]|[}[}[} O O)
1970 Challenger  (O O [======R/T=] O O)
1971 Challenger  (O O ===== ===== O O)
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Offline Katfish

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Re: 727 Yoke seal replacement
« Reply #7 on: June 29, 2008 - 08:39:09 PM »
:iagree: or another way if you do not have a socket is to drill a hole through a piece of wood with the correct size hole saw and fit it around and over the seal to fit................... :cooldancing:

Hey great minds think alike.  I did exactly like you suggested, but before reading your post.

Thx

Offline hemiken

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Re: 727 Yoke seal replacement
« Reply #8 on: June 29, 2008 - 08:43:45 PM »
 :swaying: thats cool................ Someguys do not have that big of a socket in their tool box. :woohoo:
1970 Barracuda   (O^--^===|===^--^O)
1971 Barracuda   (O O {]{]{]|[}[}[} O O)
1970 Challenger  (O O [======R/T=] O O)
1971 Challenger  (O O ===== ===== O O)
I pay homage to the best Mopars ever built.

Offline ntstlgl1970

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Re: 727 Yoke seal replacement
« Reply #9 on: June 29, 2008 - 08:46:47 PM »
flywheel socket (2 1/8") for an RX-7 works pretty well if I remember right....

 :ylsuper:

but I like the hole in some wood idea too, would be easier on the seal flange.
70 Cuda, 7.0L Gen-III Hemi, Viper T56 w/9310 gearset, 3.91's, Megasquirt MS3x v3.57, Innovate wideband, Firm Feel upper arms, torsion bars, springs and strut rods, QA1 DA shocks. I did everything on this car except the fancy paint stuff and I drive it...and I can't seem to stop messing with it....

Offline Changin Gears

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Re: 727 Yoke seal replacement
« Reply #10 on: June 29, 2008 - 10:17:24 PM »
I've always used a stack of 4 old 4-speed syncro blocker rings duct taped together as a yoke seal driver (same stack for 20+ years now).


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Offline Chryco Psycho

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Re: 727 Yoke seal replacement
« Reply #11 on: June 30, 2008 - 02:04:00 AM »
you can buy the sheet metal sockets for diff locknuts for cheap in the correct diameter , that is what I have used for years now

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Offline Katfish

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Re: 727 Yoke seal replacement
« Reply #12 on: July 01, 2008 - 08:30:17 PM »
Got it together, here's the "tool" I made. Had to add the handle since the exhaust is very tight in this area.

Offline hemiken

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Re: 727 Yoke seal replacement
« Reply #13 on: July 02, 2008 - 12:55:54 AM »
 :bigsmile: Well done old mate................ Now you have a spare dog bowl to feed the doggy with and it has its own carry handle. :smilielol: :2thumbs:
1970 Barracuda   (O^--^===|===^--^O)
1971 Barracuda   (O O {]{]{]|[}[}[} O O)
1970 Challenger  (O O [======R/T=] O O)
1971 Challenger  (O O ===== ===== O O)
I pay homage to the best Mopars ever built.