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Old 04-08-2014, 10:41 PM   #1
packyusmc
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Join Date: Jul 2012
Location: Tuttle, OK
Posts: 64
Default Cotter pin in oil pan?

When I was changing oil the other day, I noticed that there is a small hole in the rear of the pan with a cotter pin in the hole, the "horse shoe" part is on the inside. Is this way to keep oil that gets past the rear seal to drain out? It is a '48 engine and trans. Thanks for your help on this.
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