Hi I have a 67 d100 , i was told that I have a forged crank and is uses a different balancer that /6 with a cast crank , thanx for any info

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Dodge =Dam Old Dodge Goes Everywere

No, the difference is in the placement of the timing marks. IIRC, they changed in the late '60's, so you will need an early damper.

A cast crank damper will fit/work, but your timing tab will not align with the mark on the late damper.

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Official Cookie and Mater Tormentor.

Thank you ,I did want to use one that was harmful to the motor

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Dodge =Dam Old Dodge Goes Everywere