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- - Rear Main oil seal (https://67-72chevytrucks.com/vboard/showthread.php?t=487402)

TONY2000

10-04-2011 03:54 AM

Rear Main oil seal

Hi
Would i be right in saying all 1969-1971 307Ci motors
have a two piece rear main seal ?

Mine has a casting no of 3970024 which makes it 1969-1971

Engine no T0414CCC so a 2 bolt 307 produced on April 14th 1971 @ Tonawonda

I just need to order some parts and wanted to be sure :new:

rcbildr

10-04-2011 04:41 AM

Re: Rear Main oil seal

Yes, as far as I know they didn't go to the one piece rear main seal until sometime in the 80's.

screaminchevypickup

10-04-2011 04:41 AM

Re: Rear Main oil seal

Yes they all have a 2 piece seal
Posted via Mobile Device

hugger6933

10-04-2011 06:48 AM

Re: Rear Main oil seal

1986 is when the general started putting in the one piece, the same time they went to center bolt valve covers

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