Just bought a1989 Capri. There was a pin in the luff channel at the base of the mast which I thought was welded to the base plate. Turns out it wasn't and it is lost. Can anyone tell me what it was for? I think it may have been a filler/support to reinforce the sides of the mast base when the bolt is tightened to secure the mast. Anybody have an idea of where I can get another one? Appreciate the help!