Home » Public Forums » GMCnet » [GMCnet] Final Drive Shaft Seal
| [GMCnet] Final Drive Shaft Seal [message #171998] |
Mon, 04 June 2012 11:24  |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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Hi Guys
I've got a leaking left final drive seal, how hard is this to replace ???
I've contacted Jim Kan-O-Tomatoes to see if I can get a new seal, are any
special tools needed? I can grab a seal locally if it's something standard.
Thanks
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] Final Drive Shaft Seal [message #172001 is a reply to message #171998] |
Mon, 04 June 2012 11:46  |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Ray, a few words of caution about seal replacement. First, check the
lubricant for any presence of ATF. If it is pink at all, the duplex seal
between the final drive and the transmission is leaking transmission fluid
forward into the final drive. If this is the case, you are going to have to
pull the final drive and replace the sea. Second, what I often do when
replacing a seal is to take a very sharp scratch awl and punch a hole in
the metal part of the seal. Use a slide hammer with a self tapping screw on
the end and screw it into the hole that you punched. A few strokes with the
slide hammer, and the seal is out. Sometimes on a stubborn seal, more than
one hole will have to be punched. While you have the CV flange out, inspect
the area that the seal runs on. They can become quite worn. If it is
grooved, there is a product called a "speedy sleeve" that can be used to
repair them. On the big seal on the passenger side of the final drive,
there is an "up" side to the seal and it must be installed with the 2
little weep holes towards the top of the case. Also, make sure the gasket
on the cover is installed correctly and that the vent near the top bolt
hole is open.
Jim Hupy
Salem, OR
78 GMC Royale 403
On Mon, Jun 4, 2012 at 9:24 AM, Ray Erspamer <78gmc-royale@att.net> wrote:
> Hi Guys
>
> I've got a leaking left final drive seal, how hard is this to replace ???
>
> I've contacted Jim Kan-O-Tomatoes to see if I can get a new seal, are any
> special tools needed? I can grab a seal locally if it's something
> standard.
>
> Thanks
>
> Ray
>
>
> Ray & Lisa
> 78 Royale "Great Lakes Eagle"
> Center Kitchen TZE368V101144
> Wauwatosa, Wisconsin 53226
> Email: 78GMC-Royale@att.net
> 414-745-3188
> Web Site: http://ray-lisa.page.tl/
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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| Re: [GMCnet] Final Drive Shaft Seal [message #172006 is a reply to message #172001] |
Mon, 04 June 2012 12:11 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Look here, There is less likely that the seal is at fault.
It is probably the venting system and also a wrong cover.
Don't waste your time .
Call me so I can help.800-752-7502
On Mon, Jun 4, 2012 at 9:46 AM, James Hupy <jamesh1296@gmail.com> wrote:
> Ray, a few words of caution about seal replacement. First, check the
> lubricant for any presence of ATF. If it is pink at all, the duplex seal
> between the final drive and the transmission is leaking transmission fluid
> forward into the final drive. If this is the case, you are going to have to
> pull the final drive and replace the sea. Second, what I often do when
> replacing a seal is to take a very sharp scratch awl and punch a hole in
> the metal part of the seal. Use a slide hammer with a self tapping screw on
> the end and screw it into the hole that you punched. A few strokes with the
> slide hammer, and the seal is out. Sometimes on a stubborn seal, more than
> one hole will have to be punched. While you have the CV flange out, inspect
> the area that the seal runs on. They can become quite worn. If it is
> grooved, there is a product called a "speedy sleeve" that can be used to
> repair them. On the big seal on the passenger side of the final drive,
> there is an "up" side to the seal and it must be installed with the 2
> little weep holes towards the top of the case. Also, make sure the gasket
> on the cover is installed correctly and that the vent near the top bolt
> hole is open.
> Jim Hupy
> Salem, OR
> 78 GMC Royale 403
>
> On Mon, Jun 4, 2012 at 9:24 AM, Ray Erspamer <78gmc-royale@att.net> wrote:
>
>> Hi Guys
>>
>> I've got a leaking left final drive seal, how hard is this to replace ???
>>
>> I've contacted Jim Kan-O-Tomatoes to see if I can get a new seal, are any
>> special tools needed? I can grab a seal locally if it's something
>> standard.
>>
>> Thanks
>>
>> Ray
>>
>>
>> Ray & Lisa
>> 78 Royale "Great Lakes Eagle"
>> Center Kitchen TZE368V101144
>> Wauwatosa, Wisconsin 53226
>> Email: 78GMC-Royale@att.net
>> 414-745-3188
>> Web Site: http://ray-lisa.page.tl/
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Final Drive Shaft Seal [message #172040 is a reply to message #172032] |
Mon, 04 June 2012 16:59 |
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WD0AFQ
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
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Senior Member |
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Ray, I had so many leaks, on that engine and tranny, I did not know that the final drive was leaking. Jim's mechanic saw it and we had him fix it. I hate any leaks. This engine has 6,000 miles on it, John in Tucson fixed the tranny leaks, no oily spots in my driveway now. I also had a stock 307 leak on same side and the bearing started failing. Jim will take care of you.
Dan
3 In Stainless Exhaust Headers
One Ton All Discs/Reaction Arm
355 FD/Quad Bag/Alum Radiator Manny Tran/New eng.
Holley EFI/10 Tire Air Monitoring System
Solarized Coach/Upgraded Windows
Satelite TV/On Demand Hot Water/3Way Refer
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