Sorry. I've never even seen a Skunk. (the boat I mean, of course). I have it listed as having a centerboard (pivoting on a pin) with the trunk sealed at the top. . But, if it is, in fact a daggerboard, and it's tight enough in the trunk, just friction is often enough to hold it up or down. On a Sunfish, there is a metal clip screwed on to the side of the board to hold it in the down position. Maybe if you had a picture or something, someone could give better advice than this.
Good luck with it.
i am rebuilding the retractable daggerboard for the skunk. do i need to attach rigging to raise and lower, or does gravity do the job?