Home » Public Forums » GMCnet » 3.21 Final Drive seal
| 3.21 Final Drive seal [message #68746] |
Tue, 29 December 2009 11:19  |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
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Senior Member |
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The right hand FD seal for the 3.21 is NAPA #13739
This seal is NOT specifically designed for this application, but fits and works, and does not require the use of a pressed a sleeve over the half shaft. I have used it for 4 yrs now with no leak issues.
This information was found at:
http://www.bdub.net/gmcmhparts/
Then click on "Front Axle"
It is the one titled "Final Drive Bearing Seal (Right) (Toro 3:21 Final Drive)"
HTH someone....
Larry 
78 Royale w/500 Caddy
Menomonie, WI.
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| Re: [GMCnet] 3.21 Final Drive seal [message #68759 is a reply to message #68746] |
Tue, 29 December 2009 12:05  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Larry,
Thanks, Mate!
Regards,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Larry
Sent: Wednesday, 30 December 2009 4:19 AM
To: gmclist@temp.gmcnet.org
Subject: [GMCnet] 3.21 Final Drive seal
The right hand FD seal for the 3.21 is NAPA #13739
This seal is NOT specifically designed for this application, but fits and
works, and does not require the use of a pressed a sleeve over the half
shaft. I have used it for 4 yrs now with no leak issues.
This information was found at:
http://www.bdub.net/gmcmhparts/
Then click on "Front Axle"
It is the one titled "Final Drive Bearing Seal (Right) (Toro 3:21 Final
Drive)"
HTH someone....
--
Larry :)
78 Royale w/500 Caddy
Menomonie, WI.
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: 3.21 Final Drive seal [message #68821 is a reply to message #68746] |
Tue, 29 December 2009 20:06 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Senior Member |
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Guys, thanks. I think I will be using that one. the one I got from Manny has is too large if an ID. timing is good here!!!
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: [GMCnet] 3.21 Final Drive seal [message #68850 is a reply to message #68824] |
Wed, 30 December 2009 01:03 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Larry,
I bought a 1966 Olds switch pitch trans, final drive, and right side shaft
from Bob Sobrito.
I sent it all to Manny for a rebuild before I shipped them Downunder.
He pressed a ring over the shaft to increase the OD so that the standard
3.07 seal would work.
He also supplied me with two rings to go in the 3.21 drive flanges to center
the inner CV joint covers in the flanges.
Regards,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Larry
Sent: Wednesday, 30 December 2009 1:30 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] 3.21 Final Drive seal
Chr$ wrote on Tue, 29 December 2009 20:06
> Guys, thanks. I think I will be using that one. the one I got from Manny
has is too large if an ID. timing is good here!!!
Huh..Manny must have sent you the seal for the 3:08/2.73 FD. That shaft is
larger in dia...IIRC
--
Larry :)
78 Royale w/500 Caddy
Menomonie, WI.
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GMCnet mailing list
List Information and Subscription Options:
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] 3.21 Final Drive seal [message #68928 is a reply to message #68904] |
Wed, 30 December 2009 16:57 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Larry,
I think the ring would have to be removed to change the bearing, I'll check
the next time I'm down the workshop.
Regards,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Larry
Sent: Thursday, 31 December 2009 5:32 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] 3.21 Final Drive seal
Good plan. Allows you to use the original seal that is still
available....but...do you have to remove the ring/sleeve on the shaft to get
a bad bearing off of the shaft...I don't know. Will the old/new bearing
slip over the sleeve? Just wondering.
--
Larry :)
78 Royale w/500 Caddy
Menomonie, WI.
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] 3.21 Final Drive seal [message #68967 is a reply to message #68964] |
Wed, 30 December 2009 19:48 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Chris,
Please explain what you mean by; "Only problem I have with it is there is no
flange."
Could you please take a picture of it and post it on the photo site.
Thanks,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Chris Choffat
Sent: Thursday, 31 December 2009 12:31 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] 3.21 Final Drive seal
Guys, picked one up today. fits perfectly. Thanks!
Only problem I have with it is there is no flange. wonder why the two sides
are even different anyway??? :roll:
--
-Chr$: Perpetual SmartAss
77 Ex-Kingsley 455, Power Drive, 3:21 FD The Engineer's Motorhome
S T I L L - U N D E R - C O N S T R U C T I O N
Scottsdale, AZ
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: 3.21 Final Drive seal [message #68975 is a reply to message #68746] |
Wed, 30 December 2009 20:56 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Senior Member |
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some seals have a lip or flange on the outer surface so you press them in until they seat on that lip. seal is installed. This one does not have that, so it is possible to press it in too far, or seat it at an angle relating to the shaft, so it is an eyball alignment at best. There is no inner stop for this on the FD either. the seal on the other side, has a flange. I can shoot a photo, but it is already installed. I will show a photo of the other one that has the wrong ID which is the same style.
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: [GMCnet] 3.21 Final Drive seal [message #68990 is a reply to message #68975] |
Wed, 30 December 2009 22:53 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Chris,
No need for the photo; I understand what you mean. As you noted the seal for
the 3.07 is the same, no flange.
When I replaced the seal in the 3.07 currently in The Blue Streak I did it
in situ and it was a bear as the oil pan was in the way. I tapped it in
carefully and tried to get it as square as possible, however, I doubt it is
perfect. As it not on the road I don't know if it will leak or not.
Thanks,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Chris Choffat
Sent: Thursday, 31 December 2009 1:56 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] 3.21 Final Drive seal
some seals have a lip or flange on the outer surface so you press them in
until they seat on that lip. seal is installed. This one does not have
that, so it is possible to press it in too far, or seat it at an angle
relating to the shaft, so it is an eyball alignment at best. There is no
inner stop for this on the FD either. the seal on the other side, has a
flange. I can shoot a photo, but it is already installed. I will show a
photo of the other one that has the wrong ID which is the same style.
--
-Chr$: Perpetual SmartAss
77 Ex-Kingsley 455, Power Drive, 3:21 FD The Engineer's Motorhome
S T I L L - U N D E R - C O N S T R U C T I O N
Scottsdale, AZ
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] 3.21 Final Drive seal [message #69144 is a reply to message #68990] |
Thu, 31 December 2009 19:54 |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
|
Senior Member |
|
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| Robert Mueller wrote on Wed, 30 December 2009 22:53 |
Chris,
No need for the photo; I understand what you mean. As you noted the seal for
the 3.07 is the same, no flange.
When I replaced the seal in the 3.07 currently in The Blue Streak I did it
in situ and it was a bear as the oil pan was in the way. I tapped it in
carefully and tried to get it as square as possible, however, I doubt it is
perfect. As it not on the road I don't know if it will leak or not.
Thanks,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Chris Choffat
Sent: Thursday, 31 December 2009 1:56 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] 3.21 Final Drive seal
some seals have a lip or flange on the outer surface so you press them in
until they seat on that lip. seal is installed. This one does not have
that, so it is possible to press it in too far, or seat it at an angle
relating to the shaft, so it is an eyball alignment at best. There is no
inner stop for this on the FD either. the seal on the other side, has a
flange. I can shoot a photo, but it is already installed. I will show a
photo of the other one that has the wrong ID which is the same style.
--
-Chr$: Perpetual SmartAss
77 Ex-Kingsley 455, Power Drive, 3:21 FD The Engineer's Motorhome
S T I L L - U N D E R - C O N S T R U C T I O N
Scottsdale, AZ
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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I wouldn't sweat it...it's not *that* critical. Eye balled up should do just fine...provided you are not cross-eyed that is...
Larry
78 Royale w/500 Caddy
Menomonie, WI.
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