Static Drop Questions

[meyer4589]

So I am going to be starting the tear down and build up of my 1968 C-10 Step Side. I am planning on keeping it simple with a modern touch. I plan on converting to power disc breaks and lowering the truck and all of that good stuff as well as swapping out the inline 6 and the manual trans for a 327 and a powerglide. But before I start the build I want to compare static drop sizes for the front and rear. I am considering two options right now, a 2.5 up front and 4 in the back or 3.5 in the front and 4 in the rear. But I would like get some of your opinions as well as some pictures so I can see the different drop set ups