Little hint. Use a short pin ( as long as the trigger is wide ) to hold the trigger / sear spring / sear together as a pack . Lower the pack into the trigger housing and use the real pin to push the short pin out as it's installed . Helps if the short pin is brass ( easier to see and align ) . That way you know it's right. Keep it in a used Garandgrease pot ( or like ) in your cleaning kit to keep track of.
Chris