Rear frame bent?

you're spreading the springs to fit it...right?
No. I cut off the old spring perches as I am using Doctor Diffs 1/2" offset shackles which put me at 42" center to center. I'm pretty sure I'm supposed to center the rear end to the leaf springs as that's how the old 7 1/4" rear end and leaf springs were. It's just the 1" frame offset to the pass. side is throwing me off
Spring perch widths (center-to-center)
A-BODY
B-BODY