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Parts for replacing Harmonic Balancer

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Old Oct 12, 2023 | 08:04 AM
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Default Parts for replacing Harmonic Balancer

Dear Community,

On my 2006 base C6 (LS2) it looks like I have to replace the Harmonic Balancer. It's wobbling a lot and also making some noise during idle and low power.

Since I live in Germany going to Chevy for the job will cost me my left kidney. I found a shop that knows corvettes and will do the job if I get all the parts. They also suggested to replace the belts and tensioners that run off it while they're at it. I think that's a good idea since I know nothing all about the service history on my car before my ownership (I know, I know..)
router login 192.168.l.l.link/
I think I'll have to order everything from the states. Does anyone have a list of parts (and a good shop to buy them from) I'll need to get to replace the HB as well as the relevant parts on the front? What do you think about installing the ATI HB? I've read mixed reviews on whether to go for OEM or the aftermarket HB.

Thank you all so much and greetings from Germany!

Last edited by kasit; Oct 17, 2023 at 06:56 AM.
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Old Oct 12, 2023 | 08:24 AM
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Yes, needs to be moved to C6, but surprisingly to me, it is 2023 and this HB is STILL an issue. This is GMs MO. They would rather replace parts than re-engineer...all the way up to when the warranty expires.
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Old Oct 12, 2023 | 12:33 PM
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Moved over to C6 Tech for some assistance.
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Old Oct 15, 2023 | 06:47 AM
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Do NOT use an OEM balancer or else you will be replacing it again in the future for the same reason. Everyone will recommend ATI, if you can afford it they are great but there are other great options available for less such as powerbond.
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Old Oct 15, 2023 | 07:12 AM
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Originally Posted by C6Ninja
Do NOT use an OEM balancer or else you will be replacing it again in the future for the same reason. Everyone will recommend ATI, if you can afford it they are great but there are other great options available for less such as powerbond.
Yes, absolutely agree. I've replaced a few of these on C6s. My "goto" even over ATI, which is OK on a built motor but overkill on a street car, is Dayco/Powerbond. Haven't done one of these now in some time, but the Powerbond is a solid replacement and done once.
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Old Oct 15, 2023 | 10:25 AM
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Was also an issue on the C4 that I had.
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Old Oct 16, 2023 | 11:20 PM
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This is stuff I got when I did mine:
the balancer:
Amazon Amazon
the bolt:
Amazon Amazon
front main seal:
Amazon Amazon

they should have the puller, the installer tool, and the flywheel lock already, (I would think)

belts:
Air conditioner belt:
Amazon Amazon
main belt:
Amazon Amazon

I dropped the front cradle, which seemed to be way way easier than removing the steering rack, If they really want to do that, then you would probably want to replace bother power steering lines.
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Old Oct 17, 2023 | 08:42 AM
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Summit Racing has a good one as well
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Old Oct 17, 2023 | 08:47 AM
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Originally Posted by 07BlackBlack
This is stuff I got when I did mine:
the balancer: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
the bolt: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
front main seal: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

they should have the puller, the installer tool, and the flywheel lock already, (I would think)

belts:
Air conditioner belt: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
main belt: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

I dropped the front cradle, which seemed to be way way easier than removing the steering rack, If they really want to do that, then you would probably want to replace bother power steering lines.
These are all good parts. That HB will last the life of the car now. Same one I've used a number of times.

Also, the bolt is the GM one which is FAR better than the case hardened aftermarket one that is popular. This bolt is a torque yield so it is a one-time use, but still far better than the hardened one which has a tendency to vibrate loose.

All good choices IMO.
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Old Oct 17, 2023 | 09:41 PM
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Timing cover seal. The shop that did my balancer did not do the seal. I had to redo it myself to fix the oil leak. Not really that hard to do.
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