Fixing Leaky Transmission Remote Filter

From day one, the remote transmission filter seeped fluid, maybe only two or three drops per 10 miles, but it would drip and hit on the headers every once in a while and cause STINK ! Not to mention staining the concrete anywhere I parked.

Started with filing on the surface to get some of the pits out before I thought of taking a picture. Surface isn't even flat as you can see the low spots and the pits in the surface.
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Pretty crumby....
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Now to start with sanding down to get the pits at minimum.
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Started with 200 grit, then 400, then 600 grit block sanding. Decided this is good enough. We shall see. Reinstalled and after a 5 minute test, watching the edge of the filter, it's not leaking......
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