rear gear lube
Thread Starter
Instructor
Joined: Jul 2012
Posts: 109
Likes: 1
lube
thank you for the ID, and Hi Dub! yes this is out of a Dana rear from another car, I just put a new cover on my corvette rear and this lube looked pretty neat, the dana is a posi-- could they have added a additive to it for the posi?
Race Director
Joined: Apr 2009
Posts: 19,294
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From: Charlotte NC
WHY??? Because I do this for a living...and I have to warranty my work and this includes my decision on what I use during my repairs. I am NOT a DIY'er ( which is not a cut down )....so...if a catastrophic failure problem...or a longevity issue occurred due to me changing what I know works...it costs me major money and damage to my reputation....which is not so easily repaired. I know many advancements in oil and using AMSOIL in my shop...I still can not use anything buy GM products in a differential. I have been told by my AMSOIL guy I deal with that their stuff would work fine....but...I can not do it....because if something went wrong...I would kick myself in the backside for changing.
DUB
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Thread Starter
Instructor
Joined: Jul 2012
Posts: 109
Likes: 1
When it comes to adding differential oil and additive to Corvette rear differentials....I DO NOT try to 're-invent the wheel'.
WHY??? Because I do this for a living...and I have to warranty my work and this includes my decision on what I use during my repairs. I am NOT a DIY'er ( which is not a cut down )....so...if a catastrophic failure problem...or a longevity issue occurred due to me changing what I know works...it costs me major money and damage to my reputation....which is not so easily repaired. I know many advancements in oil and using AMSOIL in my shop...I still can not use anything buy GM products in a differential. I have been told by my AMSOIL guy I deal with that their stuff would work fine....but...I can not do it....because if something went wrong...I would kick myself in the backside for changing.
DUB
WHY??? Because I do this for a living...and I have to warranty my work and this includes my decision on what I use during my repairs. I am NOT a DIY'er ( which is not a cut down )....so...if a catastrophic failure problem...or a longevity issue occurred due to me changing what I know works...it costs me major money and damage to my reputation....which is not so easily repaired. I know many advancements in oil and using AMSOIL in my shop...I still can not use anything buy GM products in a differential. I have been told by my AMSOIL guy I deal with that their stuff would work fine....but...I can not do it....because if something went wrong...I would kick myself in the backside for changing.
DUB
Race Director
Joined: Apr 2009
Posts: 19,294
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From: Charlotte NC
YEAH...I would also be amazed if it has still clung on and not run off the axle. It would make me 'wonder' also....and it actually is. Hmmmm...very interesting.
But...due to liability/warranty issues for me...I mainly use GM anti-slip additive and GM gear oil. It is easy for me to get and is not that much $$$. So I use what GM sells so if a problem ever occurred...I would not have to explain WHY I did not use GM oil to the customer who would ask and possibly use that as a reason for the failure. Keep in mind...in 30 years...I have dealt with about every type of person and attitude that you can imagine.
Now on some differentials where my relationship with the owner is very good and not all about...'pointing fingers'....I will use Valvoline 80w-90...BUT I still use the anti-slip additive from GM ALL the time where it is required. But..generally I use the GM products because I get them by the case....so it is on hand.
DUB
Thread Starter
Instructor
Joined: Jul 2012
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ok thank you DUB, I also listened to you on all my weatherstips and used what you told me, body is not quite done yet but frame is close! by the way do you have the part number for the GM additive?
also I will check into that red line- does that need a additive also? (thank you Moose)
also I will check into that red line- does that need a additive also? (thank you Moose)
Last edited by 1973; Aug 10, 2015 at 12:55 PM. Reason: forgot to add in something
Le Mans Master
Joined: Dec 2003
Posts: 5,727
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From: Fremont CA
I don't think that's Redline Shock Proof and I have 2 gallons of Redline in my garage right now. I think it is a lube with Lucas oil additive added into it. Lucas additive makes gear oil cling to parts. Moroso also sells a "climbing lube" for differentials.
Melting Slicks
Joined: Apr 2009
Posts: 2,632
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From: Great Plains Iowa
As the pinion is submerged in oil it doesn't make any difference whether it "clings" or not.
Race Director
Joined: Apr 2009
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From: Charlotte NC
A local GM dealer should have that no problem. I think the part number is 88900330
GOOD POINT.
I KNOW it is a BIG STRETCH ...but I get differentials that come in from time to time where the car sat so long and was NEVER MOVED...that when I take to cover off...half of the ring gear and carrier are covered in rust.....and the other half that was in the gear oil...is perfect as can be.
Like I wrote...it is a stretch...but I kinda like how it clings.
DUB
I KNOW it is a BIG STRETCH ...but I get differentials that come in from time to time where the car sat so long and was NEVER MOVED...that when I take to cover off...half of the ring gear and carrier are covered in rust.....and the other half that was in the gear oil...is perfect as can be.
Like I wrote...it is a stretch...but I kinda like how it clings.
DUB