Just looked at the schematic for this MIM trigger, hand and spring. There appears to be another pin that goes in the front of the trigger.

I now Know I'm going to need a short tutorial on this.

What does the spring go on? Which stud on the hand.

Sorry to be so slow on this as all my other Smiths are pre MIM and don't have the same trigger-hand assembly. This 442 is/was my BUG.