Top chop; Top is marked;; PICS;;;

cut out 2 3/4 inches in the back, 3 1/2 front

 

Like brewsir said, the cab top will need a lot of work if you keep the 'a' pillar at stock angle. Also the door top will need to be cut and lengthened as well if the 'a' pillar remains at stock angle.
You can cut the rear window out and size it independant of the rest of the chop and add it back in where it would need to go, let it tell you.
Other than that - whack 'er up!

 

Oh I see it...you cut to the outside of the tape!

 

I'm going to try to cut the top in the morning. Sure hope I don't F#*K it up. I've heard lots of people say it's only metal. We'll see. RUSTY