I am repairing a Stevens 820B 12Ga. One of its several problems was the Slide Lock Spring, which had broken. I got the small piece that was hooked behind the pin out by grabbing it with pliers and bending it out. But putting the new one in presents another problem. I cant see how to get it back in without bending it and I dont want to bend a new spring. Is there a trick to getting the new slide lock spring installed?