Porterbuilt 4 link questions

[rip2174]

I've installed the bridge and notches. Getting ready to install the 4 link system . My first question and anyone tell me which length bolts are designated to go were in the system. I have 3 different bolts and not really sure where they go. Also where I thought they might go, they don't fit in the holes. 2nd question. Direction say to set the pinion at zero degrees. Kind of lost on this one two. Any suggestions would be appreciated.