If you don't get anyone ID'ing this part, you could try and get a membership to studioscalemodelers.com . They have a list on the forums page with sprue photos.
The look like F4U Corsair or F6F Hellcat legs. The pegs would indicate that the gear is on an angle, the only AC I can think of, off the top of my head, that have angled gear legs, are those two. But I've been known to be wildly wrong before...