727 Rear Output Shaft Bearing...

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    Author Topic: 727 Rear Output Shaft Bearing...  (Read 4420 times)

    Offline -Tom-

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    727 Rear Output Shaft Bearing...
    « on: May 30, 2014 - 09:51:45 AM »

    Hi

    At this Moment I am really tired of my car! If I take the car out and drive it one day I can be sure something get broken. So the same this time. I took the car for a spin (about 100 miles), last period I was at highway, driving 60-70mph (2800-3200rpm). Suddenly I noticed strong vibrations from one second to other. The vibrations are so bad, the whole car is shaking, it starts from 10mph depending from speed.

    So few minutes ago I jacked the car up. I saw there was a lot of Transmission Fluid under the car, it came from the output Shaft from the 727. I tried to move the drive Shaft... and I saw the U-Joint haves play. I think about 3-4mm  :-\
    So I think its the rear output Shaft Bearing.... is it right? Do I need to take out the Tranny to change that Bearing or is it a simple thing?

    Thanks a lot. Tom
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    Offline Chryco Psycho

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    Re: 727 Rear Output Shaft Bearing...
    « Reply #1 on: May 30, 2014 - 07:45:46 PM »
    you do not have to pull the trans , you can remove the tail housing or there is a tool to change it in the car , But are the U joints Bad , is the driveshaft long enough , the yolk should slide all the way in until it almost pushes against the dust seal on the rear seal , you should barely have 1" of extra travel to remove the rear of the shaft from the yolk ?
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    Offline -Tom-

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    Re: 727 Rear Output Shaft Bearing...
    « Reply #2 on: June 01, 2014 - 06:21:51 PM »

    Hi

    So it is possible to take the bearing out on both sides, it means with the right tool i can pull it out on the side from the driveshaft even the tail housing is in? Nice, so i can try to fix it at home...

    Thanks for this reply. I will take the driveshaft out an look if everything seems to be ok. It seems i have travel enough but will see...

    Thanks
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    Offline Chryco Psycho

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    Re: 727 Rear Output Shaft Bearing...
    « Reply #3 on: June 02, 2014 - 10:37:53 AM »
    the tool looks like this
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    Offline flynfish4u

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    Re: 727 Rear Output Shaft Bearing...
    « Reply #4 on: June 13, 2014 - 09:33:57 PM »
    Check your bushing @ rear of tailshaft housing. When your u-joints/rear bearing are showing excessive wear/vibration it can wipe the bushing out, too. If you install another one make sure oil return groove is pointed in right direction (up) so yoke is oiled.
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    Offline -Tom-

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    Re: 727 Rear Output Shaft Bearing...
    « Reply #5 on: June 21, 2014 - 12:03:05 PM »

    Ok thanks a lot. Tody i changed the bushing (yes now i know its not a bearing) with a tool from snap on. It came out easy with that, the new was in quick.
    I was confused a little about the oil seal. I bought that from napa (16725) and it looks different to the ATP oil seal. But anyway it fits and i hope its so good as the other one (should be, double price compared with ATP).

    No vibration now. Thanks
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    Offline Chryco Psycho

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    Re: 727 Rear Output Shaft Bearing...
    « Reply #6 on: June 21, 2014 - 08:09:52 PM »
    Snap On makes good tools but there are pricey , glad you got the bushing swapped out & it fixed the issue  :2thumbs:
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    Offline brasil

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    Re: 727 Rear Output Shaft Bearing...
    « Reply #7 on: June 22, 2014 - 03:33:55 AM »
    @ TOM

    I think I have the same "issue "...   do you have a part Number from this   SNAP ON Tool   you used ?? 

    Thank you in advance

    Greetings from Germany
    Juergen
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    Offline -Tom-

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    Re: 727 Rear Output Shaft Bearing...
    « Reply #8 on: June 22, 2014 - 03:42:58 AM »
    Quote from: brasil on June 22, 2014 - 03:33:55 AM
    @ TOM

    I think I have the same "issue "...   do you have a part Number from this   SNAP ON Tool   you used ?? 

    Thank you in advance

    Greetings from Germany
    Juergen

    Its SNAP ON S8687A
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    Offline brasil

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    Re: 727 Rear Output Shaft Bearing...
    « Reply #9 on: June 22, 2014 - 05:44:34 PM »
    Thank You !  Danke Dir

    Gruß Juergen
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    Offline brasil

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    Re: 727 Rear Output Shaft Bearing...
    « Reply #10 on: June 30, 2014 - 06:29:47 PM »
    Changed the bushing today.. I removed the Ext. housing..  ..  was an easy Job !
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