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Old 05-06-2009, 03:04 AM   #1
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Exclamation Rear Differential Oil Change Question

Ok I will attempt to change my rear diff oil this weekend. Here is a list I had compiled. Let me know if I am missing anything.

75w-90 Synthetic Gear Lubricant
New Camaro 10 bolt Gasket
Brake Cleaner

Now I know someone says to use brake cleaner, but what do I have to clean? Also any suggestions will be appreciated.
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Old 05-06-2009, 06:41 PM   #2
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That should be all you need to complete this job. You can use the brake cleaner to clean out the housing. There will be grime and metal shavings present. Especially if it has never been changed before. Its really easy to do. Clean off the magnet on the cover when you have it apart as well. Make sure you clean the area where the gasket makes contact really well to avoid leaks in the future.
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Old 05-06-2009, 07:26 PM   #3
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save ur money and use reg. gear oil, ask any pro diff builder and they will tell u the same, dont forget the gm limited slip additive, and yes use the gm stuff, not the cheap auto parts stuff.
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Old 05-06-2009, 08:52 PM   #4
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i always put a small bead of silicone on both sides of the gasket to be safe. i buy the ford additive, it is bad *** stuff.
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Old 05-06-2009, 11:49 PM   #5
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how many quarts will the 10 bolt hold?
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Old 05-07-2009, 02:36 AM   #6
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Originally Posted by LS1Aggie View Post
That should be all you need to complete this job. You can use the brake cleaner to clean out the housing. There will be grime and metal shavings present. Especially if it has never been changed before. Its really easy to do. Clean off the magnet on the cover when you have it apart as well. Make sure you clean the area where the gasket makes contact really well to avoid leaks in the future.
Ok thank you.

Quote:
Originally Posted by 07gsxr750 View Post
save ur money and use reg. gear oil, ask any pro diff builder and they will tell u the same, dont forget the gm limited slip additive, and yes use the gm stuff, not the cheap auto parts stuff.
I have heard this from others. GM does recommend the Synthetic, but I hear a lot of people uses the regular gear oil. I have some in my garage already. And how much is the GM additive?

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i always put a small bead of silicone on both sides of the gasket to be safe. i buy the ford additive, it is bad *** stuff.
What type and brand of silicone?

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how many quarts will the 10 bolt hold?
1.75 qts.
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Old 05-07-2009, 09:11 AM   #7
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i always use the red permatex and have never had a problem. keep in mind if you have a torsen posi, it is an all gear driven posi and doesn't require the additive. the auburns in 98 do require it because they have clutches.
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Old 05-07-2009, 10:19 AM   #8
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i always use the red permatex and have never had a problem. keep in mind if you have a torsen posi, it is an all gear driven posi and doesn't require the additive. the auburns in 98 do require it because they have clutches.
my car came with 2.73's from the factory, would it have a torsen or auburn?
Sorry OP i dont mean to
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Old 05-08-2009, 02:14 AM   #9
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i always use the red permatex and have never had a problem. keep in mind if you have a torsen posi, it is an all gear driven posi and doesn't require the additive. the auburns in 98 do require it because they have clutches.
How would I tell. I have a 2000 V6 model.

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my car came with 2.73's from the factory, would it have a torsen or auburn?
Sorry OP i dont mean to
No worries. Any question is good for a problem. That is what the forums are for right?
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Old 05-08-2009, 09:21 AM   #10
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i believe 99 and up came with torsens and do not require the friction modifier ( posi additive) if yours is a stock v6 rear end then you shouldnt need it at all bc i dont think any of them had the posi-trac.

bad tx: you need to search around and see if your car came with the torsen, i think they had a different posi for the 3rd gens so thats why i say try to search it.
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Old 05-08-2009, 10:03 AM   #11
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^^ thanks, i'll try and do a little research
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Old 05-09-2009, 04:26 AM   #12
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Originally Posted by 01ssreda4 View Post
i believe 99 and up came with torsens and do not require the friction modifier ( posi additive) if yours is a stock v6 rear end then you shouldnt need it at all bc i dont think any of them had the posi-trac.

bad tx: you need to search around and see if your car came with the torsen, i think they had a different posi for the 3rd gens so thats why i say try to search it.
Sweet. More money in my pocket.
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Old 05-19-2009, 08:01 PM   #13
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i , i think they had a different posi for the 3rd gens so thats why i say try to search it.

Me and a buddy changed our fluid out last weekend and his 3rd gen IROC had a 7.75" and a locker..... Surprise to me
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Old 05-20-2009, 02:24 AM   #14
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Me and a buddy changed our fluid out last weekend and his 3rd gen IROC had a 7.75" and a locker..... Surprise to me
lol funny
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Old 05-20-2009, 02:24 AM
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