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Old 08-02-2012, 05:41 PM
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bigdog7373 bigdog7373 is offline
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Use a 400 external balance flexplate.
You need the harmonic balancer too

383 cranks can come internal or externally balanced.
If you use an actual 400 crank it's external balance.
Any external balance 383 uses a 400 flex plate.
Internal balance uses a 350.
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