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GMC V6 and V12 Engines Engine repair and rebuilding

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  #1  
Old July 24th, 2020, 06:12 PM
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jmfurgason jmfurgason is offline
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Smile oil pan plug seal

Any one have an idea of what size seal or gasket fits the oil plug on 305E 1963 ? thanks to all JMF
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Old July 25th, 2020, 08:28 PM
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AZKen AZKen is offline
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Default Re: oil pan plug seal

DORMAN 097022 Nylon; Nylon Gasket; Size; 1/2", M12; Inside Dia: 0.504"/12.80mm; Outside Dia.: 0.988"/25.10mm; Thickness:
0.068"/1.73mm

https://www.oreillyauto.com/detail/b...097022/4177613

https://www.napaonline.com/en/search...=nol-veh-conds

Last edited by AZKen; July 25th, 2020 at 08:34 PM.
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Old July 25th, 2020, 09:26 PM
James James is offline
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Default Re: oil pan plug seal

On the engines that I have I am using P/N: AN900-14
It is 7/8" ID. Use the attached instructions for installation.
Can be found on ebay for around $12.00 for a pack of 10.
Attached Files
File Type: pdf Copper_crush_gaskets.pdf (96.6 KB, Multiple views, 6 clicks)
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Old July 25th, 2020, 11:03 PM
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Default Re: oil pan plug seal

NOTICE

I checked a spare pan plug I have, James is right. The plug threads are 7/8 and the OD of gasket is near 1 1/4, Very strange that Rockauto, O'Reilly's and Napa, all say the one I linked is correct for 1963 GMC 305 V6.

Last edited by AZKen; July 26th, 2020 at 01:25 AM.
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Old July 26th, 2020, 12:37 AM
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Default Re: oil pan plug seal

Thanks to all responses ,ordered dorman nylon, Jmf
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