Thread: Winchester model 70 3 position safety problem

You need a U shaped piece of flat metal that will fit freely over the firing pin to draw back the spring while you put the collar in place, ease the spring back onto the collar and slip the metal out. The collar has a step that goes inside the end of the spring to retain it. If you are careful you can do it using the nose of long-nosed pliers or even a pair of scissors held in a vise.