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Rear end fluid change

This is a discussion on Rear end fluid change within the Drivetrain forums, part of the LSx Technical Help Section category; im going to change my rear end fluid tomorrow. i mean i dont need to with my car only having ...

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    Member whiteLS1TA's Avatar
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    Rear end fluid change

    im going to change my rear end fluid tomorrow. i mean i dont need to with my car only having 40,000 miles but i like haveing my baby haveing the best fluids, but i dont really know what fluids to use. i got some redline rear end fluid, is that a good brand?

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    2 SS's are better than 1 Jays00ss's Avatar
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    Quote Originally Posted by whiteLS1TA View Post
    im going to change my rear end fluid tomorrow. i mean i dont need to with my car only having 40,000 miles but i like haveing my baby haveing the best fluids, but i dont really know what fluids to use. i got some redline rear end fluid, is that a good brand?
    red line, Royal purple, Torco, or lucas are about the best brands to run. Redline is just fine and you don't need posi additive.
    2000 SS Camaro Heads, Large cam, Fast 90, 9"w/430's and locker, yada yada yada... you get the picture

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    2006 Silverado 2500HD 496 cubic inches of pure muscle

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    Senior Member Sleeper101's Avatar
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    Lucas FTW!!!!!!!!!!!!

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    Senior Member 35thAnniZ28's Avatar
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    lucas made mine whine...:\

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    Impounded
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    lucas is a terrible choice...amsoil or any good regular brand name.Royal purple is over priced junk too.

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    old timer blue02Z's Avatar
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    amsoil

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    ls1ftw tigersport14's Avatar
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    penzoil platnum!

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    Member camarolvr69's Avatar
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    Quote Originally Posted by tigersport14 View Post
    penzoil platnum!
    LOL do they even make a penn. plat. rear end fluid???

    Amsoil is really good rear end fluid.

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    Senior Member Sleeper101's Avatar
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    Mine currently has NAPA in it. So does my buddies, Been fine for 4 years now. Not a prob.

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    Senior Member splitfinger09's Avatar
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    Here's a good study recently published on auto gear lubes

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    Senior Member INMY01TA's Avatar
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    I would use any dino 80/90 gear oil. Synthetic isn't necesarry. Neither Moser nor Strange recommend syn for their 12 bolts and I used Redline shockproof syn gear oil in my old 10 bolt once and I started getting one wheel peels at the track.

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    Senior Member 35thAnniZ28's Avatar
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    75/90 amsoil is what sarge recommends,took my whine away after a couple of wot runs

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    ls1ftw tigersport14's Avatar
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    how do you change it?

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    Senior Member 35thAnniZ28's Avatar
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    unbolt the 12 bolts around the pumpkin .....inspect the magnet inside the case...clean inside the case with brake cleaner....grab the gasket maker and make GOOD ENOUGH SEAL ON THE CASE WHERE YOUR SURE IT WONT LEAK..bolt it back up....add lube through the back of the pumpkin..there you can just lay your wrench with out any sockets and unbolt

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    About your experience with Synthetic

    Quote Originally Posted by INMY01TA View Post
    I would use any dino 80/90 gear oil. Synthetic isn't necesarry. Neither Moser nor Strange recommend syn for their 12 bolts and I used Redline shockproof syn gear oil in my old 10 bolt once and I started getting one wheel peels at the track.
    Limited slips have some special lube requirements. Not all rear end lubes are formulated the same. I did a short article on limited slip diff chatter a couple of months back. May be interesting to you.

    Regards...

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