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Thread: VY Rear Main Seal & Clutch

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    LTH-00L is offline Forum Contributor Last Online: 10-05-2020 @ 11:04 AM
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    VY Rear Main Seal & Clutch

    Hi guys,

    My VY Monaro is starting to lose oil from the rear main seal so i've decided I might as well do the clutch at the same time as the seal.

    Anyone got any recommendations about where to buy both a clutch kit and rear seal? I would prefer to stick with genuine equipment and I'm based in Sydney.

    Thanks in Advance.

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    LTH-00L is offline Forum Contributor Last Online: 10-05-2020 @ 11:04 AM
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    Re: VY Rear Main Seal & Clutch

    Hi All, I called Peninsula Holden today to get a price on both a clutch kit & Rear seal.

    They quoted $740 for the clutch kit which includes fly wheel & slave cylinder. Nothing too surprising here but when it came to the seal i was very surprised. Apparently they don't sell just the seal and i need to buy the entire housing at a cost of $202. Does this sound right? Was there a problem with the original housing which is why Holden now sell it as a complete kit?

    Any advice would be greatly appreciated.

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    SASLS1 is offline Forum Contributor Last Online: 26-06-2025 @ 04:14 AM
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    Re: VY Rear Main Seal & Clutch

    New design reverse Lip Seal from GM part number is 89018129.

    I replaced mine on my L76 6.0L. Holden part number for above is 89060436, $49.65 in Sep 2013.

    GM motorsport sell rear main seal for $38.50 below

    http://www.gmmotorsport.com.au/produ...S-Engines.html

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    SASLS1 is offline Forum Contributor Last Online: 26-06-2025 @ 04:14 AM
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    Re: VY Rear Main Seal & Clutch


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    LTH-00L is offline Forum Contributor Last Online: 10-05-2020 @ 11:04 AM
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    Re: VY Rear Main Seal & Clutch

    Quote Originally Posted by SASLS1 View Post
    New design reverse Lip Seal from GM part number is 89018129.

    I replaced mine on my L76 6.0L. Holden part number for above is 89060436, $49.65 in Sep 2013.

    GM motorsport sell rear main seal for $38.50 below

    http://www.gmmotorsport.com.au/produ...S-Engines.html
    Thanks a lot for that, i'd much rather replace the just the seal for 40 bucks rather than the entire housing!

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    LTH-00L is offline Forum Contributor Last Online: 10-05-2020 @ 11:04 AM
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    Re: VY Rear Main Seal & Clutch

    Quote Originally Posted by SASLS1 View Post
    I found this online today. What are your thoughts? keep in mind my car is stock with the exception of an exhaust and tune.
    http://www.ebay.com.au/itm/131453587...865%26_rdc%3D1

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    R8HSVHRT is offline Forum Contributor Last Online: 30-06-2025 @ 10:54 AM
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    Re: VY Rear Main Seal & Clutch

    I have heard from a few mechanics that the housing that holds the seal is subjected to a lot of heat and tends to distort over time causing the seal to leak

    Im replacing the clutch in my car and will be changing the whole housing don't want any problems as its not an easy fix

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    LTH-00L is offline Forum Contributor Last Online: 10-05-2020 @ 11:04 AM
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    Re: VY Rear Main Seal & Clutch

    Quote Originally Posted by R8HSVHRT View Post
    I have heard from a few mechanics that the housing that holds the seal is subjected to a lot of heat and tends to distort over time causing the seal to leak

    Im replacing the clutch in my car and will be changing the whole housing don't want any problems as its not an easy fix
    hmm, ok something for me to think about then. Thanks for the advice!

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    Bling Bling is offline Forum Contributor Last Online: 21-11-2020 @ 07:57 PM
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    Re: VY Rear Main Seal & Clutch

    Quote Originally Posted by R8HSVHRT View Post
    I have heard from a few mechanics that the housing that holds the seal is subjected to a lot of heat and tends to distort over time causing the seal to leak

    Im replacing the clutch in my car and will be changing the whole housing don't want any problems as its not an easy fix
    Any body else out there with a distorted rear end???

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    ls2 cruiser is offline Forum Contributor Last Online: 09-12-2019 @ 09:18 PM
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    Re: VY Rear Main Seal & Clutch

    I don't think your rear plate will be distorted. Just make sure you put some assembly lube on the new lip of the seal and where it touches the crank and also make sure the crankshaft is ok where the seal runs. Moly grease will do the job. Linish the crank by hand if you have to. The bolts on your flywheel might also go through the crank and into the sump so they might need to be sealed as mine do. Have a good look at that just to make sure. I use hydraulic thread sealant (red on mine). That way they don't come undone as well.

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    ls2 cruiser is offline Forum Contributor Last Online: 09-12-2019 @ 09:18 PM
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    Re: VY Rear Main Seal & Clutch

    Also, while the rear plate is bolted to the engine, it is not going to be warped. You can change the seal without removing the rear plate. That way you don't have to buy a new seal for the plate.

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    whitels1ss is offline Powertrain Control Last Online: 30-06-2025 @ 12:20 PM
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    Re: VY Rear Main Seal & Clutch

    Quote Originally Posted by ls2 cruiser View Post
    Also, while the rear plate is bolted to the engine, it is not going to be warped.
    I can't imagine it warping whilst it's on there either.

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    IJ.'s Avatar
    IJ. is offline One of the Top Contributors to the Forum Last Online: 02-08-2018 @ 01:19 PM
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    Re: VY Rear Main Seal & Clutch

    The seals come prelubed, If you remove the Plate to change out the seal you then need an alignment tool to reinstall the plate, better to leave the plate bolted in place as Cruiser says.

    prog468.jpg

    prog469.jpg

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    ls2 cruiser is offline Forum Contributor Last Online: 09-12-2019 @ 09:18 PM
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    Re: VY Rear Main Seal & Clutch

    That's a very nifty tool. I don't have it and all I do is measure the sideways (horizontal) distance from the crank on each side and make them the same. The vertical distance is located by the position of the sump. My block is line honed because of a main stud kit and so my crank is higher by .003" or more. The seal has a fair bit of movement and it does not worry it to be out just slightly. Put some extra lube on the crank where the seal runs as it wont hurt.

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    SASLS1 is offline Forum Contributor Last Online: 26-06-2025 @ 04:14 AM
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    Re: VY Rear Main Seal & Clutch

    Seal must be installed Dry, as the inner lip of the seal has a PTFE coating, and the crankshaft seal surface must also be dry for correct break in of the seal, per the service manual.

    You can lightly lube the OD of the seal only to aid install.

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