Put your 2 inch lift shackle inbetween your chevy shackle and your leaf spring. That will give you the maximum lift and depending on were you weld the front hanger, a good shackle angle. You talking about the front spring hanger for the chevy spring? I just bought them from my local 4x4 shop.
This is a picture of a friends toy. He mounted his the same way i did mine. You can kinda see how we did it. Bought the mount and welded it on. If it helps at all.