6066 (1960-1966) GMC Truck Club

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6066 (1960-1966) GMC Truck Club (https://6066gmcclub.com/index.php)

- GMC V6 and V12 Engines (https://6066gmcclub.com/forumdisplay.php?f=9)

- - hard start (https://6066gmcclub.com/showthread.php?t=51529)

LEWISMATKIN

March 8th, 2023 03:06 AM

Re: oil drain plug gasket

Quote:

Originally Posted by bigred1 (Post 76830)

where can I order a oil drain plug gasket for my 305. drain plug is 1 1/8

the closest gasket i can find is NAPA 704-1358. i worked for napa for around 25 years and i am quite sure this is what i used to replace mine on my GMC.

James

March 8th, 2023 01:07 PM

Re: hard start

1 Attachment(s)

I used P/N: AN900-14, it is a copper crush washer. See attached file for proper installation.

I find the solid copper drain plug gasket to hard and they leaks.

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