# Crankshaft balancer hub

**URL:** <https://forums.speedlife.net/t/crankshaft-balancer-hub/168914>\
**Category:** PittSpeed Automotive\
**Created:** [September 5, 2004, 11:48am UTC](https://forums.speedlife.net/t/crankshaft-balancer-hub/168914 "2004-09-05T11:48:34Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Jeff95TA](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jeff95ta/32/5935_2.png) [@Jeff95TA](https://forums.speedlife.net/u/Jeff95TA)\
**Post date:** [September 5, 2004, 11:48am UTC](https://forums.speedlife.net/t/crankshaft-balancer-hub/168914/1 "2004-09-05T11:48:34Z")

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GM manual says to match mark the crankshaft balancer hub to the front cover. But if the crankshaft rotates while taking off the hub, then you’ll be off when it’s reinstalled to the mark. Wouldn’t it be better to match mark the hub to the crankshaft instead?

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**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\
**Post date:** [September 5, 2004, 11:50am UTC](https://forums.speedlife.net/t/crankshaft-balancer-hub/168914/2 "2004-09-05T11:50:59Z")

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comes off only one way & goes back on the sameway!!

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**Author:** ![Jeff95TA](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jeff95ta/32/5935_2.png) [@Jeff95TA](https://forums.speedlife.net/u/Jeff95TA)\
**Post date:** [September 5, 2004, 12:03pm UTC](https://forums.speedlife.net/t/crankshaft-balancer-hub/168914/3 "2004-09-05T12:03:19Z")

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> [@8.1crew](#):
>
> comes off only one way & goes back on the sameway!!

The balancer only goes on the hub one way, but the hub can go on the shaft any direction.

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**Author:** ![eurodad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/eurodad/32/5988_2.png) [@eurodad](https://forums.speedlife.net/u/eurodad)\
**Post date:** [September 5, 2004, 12:37pm UTC](https://forums.speedlife.net/t/crankshaft-balancer-hub/168914/4 "2004-09-05T12:37:04Z")

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shouldn’t there be a keyway on the shaft?

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<div class="post-metadata">

**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\
**Post date:** [September 5, 2004, 12:47pm UTC](https://forums.speedlife.net/t/crankshaft-balancer-hub/168914/5 "2004-09-05T12:47:53Z")

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> [@eurodad](#):
>
> shouldn’t there be a keyway on the shaft?

the keyway keeps it in line

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<div class="post-metadata">

**Author:** ![Jeff95TA](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jeff95ta/32/5935_2.png) [@Jeff95TA](https://forums.speedlife.net/u/Jeff95TA)\
**Post date:** [September 5, 2004, 3:13pm UTC](https://forums.speedlife.net/t/crankshaft-balancer-hub/168914/6 "2004-09-05T15:13:21Z")

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haven’t actually taken it off, but it doesn’t look like there’s one in the manual. i assumed it was just an interference fit. we’ll see!