Hello azleftie, It is my assumption (I know that's bad) the 82 could have been sitting around for a while before you or I recieved our jems if you will. When I tore into my 82 it had'nt appeared that much if any maintenance had been done. If you have the spring, use it their cheap. A vice should'nt be required, Just remove the slide from frame then you will find the firing pin stop # 10. You will have to push the firing in with a small punch so it just clears the stop. Now before you remove the fire pin stop make sure to keep a thumb over the hole or you might catch the fire pin in the chicklets, It's under spring pressure. Pull F pin out and you will see the spring in question. P.S It will be super nasty-greasy in the F pin hole, After F pin and spring are out use a good spray cleaner ( I use brake clean, It's cheaper) And re-install.