Here is a little instruction on the best way I have found to install the double post style Wild River Pans. The pictures are of a 1.5 double post pan installed on a Duke 1.5. But the same steps will work for any of the double post style pans.
Step 1: Remove the factory pan. You will need a replacement Wild River Pan, 1 machine screw, 2 over-sized spacer nuts and one nylock lock nut.
Step 2: Insert machine screw through one tab of pan, and put on first over-sized spacer nut.
Step 3: Place pan in between jaws, with machine screw far enough in to hold over-sized spacing nut.
Step 4: Place machine screw through the two trao pan posts.
Step 5: Insert second spacer nut and push machine screw all the way through. You can hold thing second nut with your finger, needle nose pliers or magnetic holder.
Step 6: Attach the Nylock nut tighten. I like to have the bolt tight enough so the pan can move separately from the bolt, with as little side to side play as possible.
Step 7: Adjust the dog so the trap will fire at the preferred position. This can be done with a pliers or the tool shown. On some traps there is also a bump on the end of the dog. You want to file this down as smooth as possible.
Step 8: Time to go find some Mink, Muskrats and Coon to test you improved trap on!