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Harmonic Balancer Thoughts

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Old Aug 8, 2021 | 02:08 AM
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Originally Posted by d16dcoe45
It was stated he has an ARP crank bolt. Why anyone still uses the one time use GM bolt is beyond me! I have had my ATI balancer off more than a few times and the 27mm 12pt ARP crank bolt has paid for itself many times over. Lock the crank with the flexplate tool and 240 lb-ft after using an install tool to get the damper on I use ARP hardware anywhere I can. The TTY GM stuff truly is junk.
I disagree. Torque-to-yield is a good method for consistent clamp load where thread and head condition is hard to control. ARP works around it with a washer and special lubricant. The stock bolt can be renewed five times for the price of one ARP bolt.

After the joint design was updated with a diamond washer, I've heard of more ARP bolts coming loose than OE bolts despite there being far more of the latter in service. Case in point.
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