How do I get the lift I need without shackles?

Sure does!!!!!
On any other body, the S/S spring needs extended front spring hangers.

I don’t see how that would work. The front & rear segment as stated earlier of an S/S spring is the same as an A body.

I dont get it , 002-003 springs wil bolt right on a 66-67 belvedere/satelite body , just moves the wheel 2'' forward , rear shackles can be a problem .