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I'm trying to narrow down a transmission leak so I can finally get it fixed. I've been looking around and noticed a very small allen key bolt that I cannot find referenced anywhere in the service manual. Before I play with it, I wanted to make sure it doesn't hold a bearing in place or something of the sort. Bolt is pointed out with the yellow arrow:
Any ideas? Is this bolt sealed with liquid gasket or something? I'm thinking maybe it's some secondary drain perhaps?