Balancer different bolt patterns?

[376shovel]

I am in the middle of an eaton swap, and I was just attempting to put the bolt-on pulley hub on the harmonic balancer. I noticed the bolt size is smaller on my current balancer AND the bolt pattern is different. The pattern diameter is smaller (bolt holes closer to the crank bolt). I believe it is a pioneer or dayco balancer.

Anybody else run into a similar problem?

I am about to just drill new holes in the pulley hub to align with this balancer.

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[RubberCtyRauder]

Have you checked on Metco Performance?

[justbob]

My ATI balancer has 6) 3/8” holes. So yes, been there. Mine lined up however


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[376shovel]

My ATI balancer has 6) 3/8” holes. So yes, been there.


Sent from my iPhone using Tapatalk ProWhat did you wind up doing?

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[justbob]

What did you wind up doing?

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Check my edit. As for the extra 3 I drilled them out to run 6 bolts.


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[376shovel]

For everyone's awareness I have the dorman replacement balancer. Not happy right now knowing I have to either change the balancer again, or drill holes in the new crank hub adapter. I just ordered a dayco version and we will see if it fits the bolt pattern. Online the pictures look right but who knows anymore.

Will report back if people are interested.

Does anyone else have a 6r80 eaton car? If so how does it run?

[dmjarosz]

Does anyone else have a 6r80 eaton car? If so how does it run?


https://www.mercurymarauder.net/forums/showthread.php?108821-6R80-Swap

I dont think he's Eaton swapped but Im definitely following that build in hopes of swapping a 6R80 into my Eaton car, possibly next summer if I can gather all the goodies.

[blazen71]

https://www.mercurymarauder.net/forums/showthread.php?108821-6R80-Swap

I dont think he's Eaton swapped but Im definitely following that build in hopes of swapping a 6R80 into my Eaton car, possibly next summer if I can gather all the goodies.
That’s his thread

[justbob]

That’s his thread

https://uploads.tapatalk-cdn.com/20201005/02e8f4fa6c164d973036df7c4f13c2 5b.jpg



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[376shovel]

The problem was solved by getting a dayco balancer.

So everyone knows: the dorman balancer has a different bolt pattern for the center bolts and it is a different size. Avoid the dorman.

The swap continues...

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