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GMC V6 and V12 Engines Engine repair and rebuilding

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  #1  
Old August 13th, 2019, 02:00 AM
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Default Diameter of the 305 flywheel

Do any club members have the measurement of the 305 flywheel? If so can you post it. I need outside edge to outside edge.

Thanks
Jake
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Old August 13th, 2019, 03:20 AM
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Default Re: Diameter of the 305 flywheel

JAKE, the o/d of the manual flywheel gear 2369440 (napa 6003026) is 16.00"/191t. I hope this helps.
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Last edited by LEWISMATKIN; August 13th, 2019 at 03:21 AM. Reason: added "gear"
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Old August 13th, 2019, 01:08 PM
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Default Re: Diameter of the 305 flywheel

I was just checking to make sure because the flywheel for the new automatic trans. adaptor is 16" as well. I suspected as much because if not, the starter gear would not have made contact. Never hurts to check.
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Old August 14th, 2019, 03:19 AM
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Default Re: Diameter of the 305 flywheel

Jake, I'd replace that starter ring gear while the parts are still uninstalled. Never hurts to put in a new wear part when the opportunity arises.
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Old August 14th, 2019, 04:05 AM
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Default Re: Diameter of the 305 flywheel

Also he ring gear can be taken off and flopped over to the other side.
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Old August 16th, 2019, 03:39 PM
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Default Re: Diameter of the 305 flywheel

Thanks, I'll do the ring gear change.
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