http://www.latemodelrestoration.com/download/instructions/LRS-21842.pdf
Here is a picture of what it looks like, plus the clips, rivits, etc from LRS. I usually drill mine out, drive to a local body shop, hold it in place and they rivit it. They usually only charge $2-$5 and it looks more like factory then using a bolt/nut (plus its easier).
View attachment 494461
Getting the actuator out will be a little tricky. Try to push the actuator down so that it gets out of the plastic holder. Then you can push it to the front of the car and wiggle the rod end out of its holder. Pay close attention where the rod end came out from, because you will have to put the new one there. The rod end is just inserted through a hole, so all you have to do is work with it to get it out. Then you will be able to manually unlock the door and get some room to work finally. Hope this helps. Once you have done a few it seems so easy, but your first is a little hard to figure out.