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What are the recommended fluids for a REAR DIFF

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Old Jun 11, 2009 | 10:35 AM
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Default What are the recommended fluids for a REAR DIFF

After gernading my RPM rear last week I have decided to go back to stock for a short time so I can get back on the road. What are the recommended fluids. Gear oil and additives if any. I need amounts as well guys. Thanks alot.
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Old Jun 11, 2009 | 10:38 AM
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I used Royal Purple Max Gear 3 years ago. It comes with the limited slip additive already in it. I have been very happy with it. I do not remember the quantity required though. I'm sure someone else will chime in.
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Old Jun 11, 2009 | 10:48 AM
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Originally Posted by Cozmo
I used Royal Purple Max Gear 3 years ago. It comes with the limited slip additive already in it. I have been very happy with it. I do not remember the quantity required though. I'm sure someone else will chime in.
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Old Jun 11, 2009 | 10:50 AM
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I did some searching and it looks like 4 bottles of gear oil and 2 bottles of GM additive. Maybe 5 bottles of Royal purple???
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Old Jun 11, 2009 | 11:01 AM
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Originally Posted by teddyca
I did some searching and it looks like 4 bottles of gear oil and 2 bottles of GM additive. Maybe 5 bottles of Royal purple???
That seems like an awful lot. Check with Rodney at RPM if all else fails.
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Old Jun 11, 2009 | 11:02 AM
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It does to me as well. We can see when someone chimes in and posts the capacity
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Old Jun 11, 2009 | 11:06 AM
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The capacity for the Rear Differential is 1.7L. Less than 2L bottles. I did mine a month or so ago and used less than 2 Litre bottles.

I, too, used the Royal Purple as it has the friction modifier already in it.

It is all in here;

http://forums.corvetteforum.com/c5-g...he-ground.html

Last edited by BenC5; Jun 11, 2009 at 11:09 AM.
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Old Jun 11, 2009 | 11:09 AM
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Did mine 4 years ago with the purple stuff when I went boost and so far my setup is purring like a cat
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Old Jun 11, 2009 | 11:14 AM
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Purple it is. Ben are you sure only 2 bottles are needed? I am not doubting you but myself. When my rear blew at the track Sunday it seemed like more then that. But since you JUST did this I will go with 2 bottles. Were you completely dry?
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Old Jun 11, 2009 | 11:17 AM
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Nevermind I missed the link at first. Its all there. Thanks buddy
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