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| Re: [GMCnet] Final drive oil [message #305733 is a reply to message #305726] |
Sun, 21 August 2016 16:06   |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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I'm all for the synthetic lubs as they outperform the standard.
We are noticing that the older standard final drives with over 120,000
miles are beginning to to fail at the pinion bearing.
I know Manny T has seen where this issue has caused the transmission output
to be damaged.
Most people have never changed the gear lub at all.
On Sun, Aug 21, 2016 at 1:33 PM, Rob Mueller
wrote:
> John,
>
> Me too!
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Emery
> Stora
> Sent: Monday, August 22, 2016 3:45 AM
> To: gmclist@list.gmcnet.org
> Subject: Re: [GMCnet] Final drive oil
>
> Hi John
> I use Mobil 1 synthetic. 75w90
>
> I used to use regular gear oil 90 weight.
>
> Emery
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
--
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 oil [message #305741 is a reply to message #305737] |
Sun, 21 August 2016 16:33 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Rob,
Almost all the cores we get back are in sad condition.
Most have not even added fluid, muchless changed it during the lifetime.
On Sun, Aug 21, 2016 at 2:17 PM, Rob Mueller
wrote:
> Jim,
>
> When I removed the cover on the 3.07 final drive on The Blue Streak I
> couldn't believe what I saw - a black gelatinous mass!
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
>
> -----Original Message-----
> From: Jim Kanomata
>
> I'm all for the synthetic lubs as they outperform the standard. We are
> noticing that the older standard final drives with over
> 120,000 miles are beginning to to fail at the pinion bearing. I know Manny
> T has seen where this issue has caused the transmission
> output to be damaged. Most people have never changed the gear lub at all.
>
> Jim
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Final drive oil [message #305773 is a reply to message #305741] |
Sun, 21 August 2016 21:33 |
Adrien G.
Messages: 474
Registered: May 2008
Location: Burns Flat, OK 73624
Karma: 1
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Senior Member |
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Well I think that the GM engineer didn't think it was needed to change the FD oil.
Or the life of the coach wouldn't be that long as to need change.
It's messy with no drain plug. Removing the cover, cleaning the gasket, cramp quarters to work.
On all my vehicles I have added a drain plug to trans, diff (FD) on my first change, then it's a piece of cake.
Oils do need to be changed occasionally.
Adrien & Jenny Genesoto
75 Glenbrook (26-3) Mods LS3.70 FD / Reaction Sys / 80mm Front&Intermidiate / Hydroboost / 16" Tires / Frame Rebuild / Interior Rebuild
Yuba City,Ca. Text 530-nine-3-three-3-nine-nine-6
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| Re: [GMCnet] Final drive oil [message #305801 is a reply to message #305773] |
Mon, 22 August 2016 09:52 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Actually they did have a recommendation on Fluid changes for the coaches. If you go to the MM X-7525 on page 0-6 Lub and gen maint chart, also page 0-7, para 8 the recommendation are listed. With the newer sythnetic base lubs the intervals can be extended somewhat longer, but not forever. The drain plug was a missed chance to make it easier. Not hard just messy, I have had the Ragusa covers on all the coaches that I have owned and they make it much easier to do the fluid changes.
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
> On Aug 21, 2016, at 10:33 PM, Adrien Genesoto wrote:
>
> Well I think that the GM engineer didn't think it was needed to change the FD oil.
> Or the life of the coach wouldn't be that long as to need change.
> It's messy with no drain plug. Removing the cover, cleaning the gasket, cramp quarters to work.
> On all my vehicles I have added a drain plug to trans, diff (FD) on my first change, then it's a piece of cake.
> Oils do need to be changed occasionally.
>
>
>
>
>
> --
> ”When we avoid the mistakes we might have made, we sometimes make the mistakes that we might have avoided.”
>
>
>
> Adrien & Jenny Genesoto
> 75 Glenbrook 26-3
> Yuba City,Ca. Text 530-nine-3-three-3-nine-nine-6
_______________________________________________
GMCnet mailing list
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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