help new here info and pic on pie cutting uppers

what is this pie cutting on the upper a arms and does anyone have pics on how to do it im in the process on bagging a 79 c30

id say ask bk2life but i think he may be headed back to afghan as we speak...im not 100 pct if he left.

Did somebody say pie? I love pie.

I'm about to pie cut mine hopefully tomorrow. I actually just logged on to get some more info on which side to cut. More or less you just cut your uppers right behind the ball joints and re-angle the ball joints. You don't need to cut it completely in half though. They typically bind up at a certain point from the extreme angle. Right now my front end is about 2" off the ground till I pie cut mine.
My main question is should I cut the top side of the arm and let a gap form and fill that gap with plate,OOORRRR Should I cut pieces of the under side of the arm and let it push itself together as it bends the arm?
I've seen it done both ways but is one way easier or strong than the other??

Hey Tricked I just put a couple of pic's up on my build thread of what angle my arms are at right now. Another member confirmed that I needed to cut the lower area of my upper arms and not the top on these square body arms. As soon as I get out there and get mine cut I'll post up pic's of the entire process. So if your still curious keep your eyes pealed on my thread. You'll either learn how I made it work on my arms or you'll learn that I need a new set of control arms and what not to do lol.