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| Re: Recommended Gear Oil for Final Drive [message #219249 is a reply to message #219159] |
Tue, 20 August 2013 12:20   |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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John Beirski recommended thicker than 90W synthetic if I could find it for the 3.21. I ended up with 80-140. Love the fact that the synthetic rear end lube doesn't stink like the dino dope does.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: Recommended Gear Oil for Final Drive [message #219324 is a reply to message #219159] |
Tue, 20 August 2013 19:21 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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When Jim K shipped me my 370 differential he included some 75/90 amsoil with it. The last time I replaced the oil I asked the Amsoil dealer which oil he recommended as I couldn't remember what weight I had been using and he said the 80/140 would be better. I called Jim after I bought the thicker oil and he said either would be OK.
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: Recommended Gear Oil for Final Drive [message #219356 is a reply to message #219324] |
Tue, 20 August 2013 22:42 |
jim kanomata
Messages: 257
Registered: March 2007
Location: fremont,ca
Karma: 12
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Since our gears are the Spiral Bevel gears, you need not go to higher viscocity like the 140.
Ford and others that ar using a Nypoid Gear require them as there is more sliding action of the gears.
Hypoin gears can run higher temperature because of the design.
The World Speed ecord GMC ran 60-90 weight Synthetic.
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Recommended Gear Oil for Final Drive [message #219393 is a reply to message #219356] |
Wed, 21 August 2013 06:56 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Question: In the final drive, can the internal carrier be flipped like a VW, thus reversing the input shaft direction?
=-johnny
'76 23' transmode norria
'76 palm beach
--------------------------------------------
On Wed, 8/21/13, jim kanomata <jimk@appliedairfilters.com> wrote:
Subject: Re: [GMCnet] Recommended Gear Oil for Final Drive
To: gmclist@temp.gmcnet.org
Date: Wednesday, August 21, 2013, 3:42 AM
Since our gears are the Spiral Bevel gears, you need not go
to higher viscocity like the 140.
Ford and others that ar using a Nypoid Gear require them as
there is more sliding action of the gears.
Hypoin gears can run higher temperature because of the
design.
The World Speed ecord GMC ran 60-90 weight Synthetic.
--
Applied/GMC, Fremont, CA
1-800-752-7502
jimk@appliedgmc.com
www.appliedgmc.com
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Recommended Gear Oil for Final Drive [message #219434 is a reply to message #219393] |
Wed, 21 August 2013 11:17 |
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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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Johnny,
Seat of the pants answer - nope - not enough room - get out your Parts Book 78Z and take a look.
Regards,
Rob M.
-----Original Message-----
From: Johnny Bridges
Question: In the final drive, can the internal carrier be flipped like a VW, thus reversing the input shaft direction?
=-johnny
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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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