How do I get the lift I need without shackles?

Where can i get a set of the 2 inch blocks to install by the rear shackel?
You guys are just pissing into the wind, spring blocks over length shackles etc.
Come on, do it right and do it once.
Get the right springs and wheels/tires and be done with it.
If I can do it anyone can.
This is not rocket surgery.