The Donahoe kit comes with an aluminum spacer that bolts to the frame (where the sway bar previously bolted to the frame) which the sway bar in turn bolts to; resulting in the sway bar being lowered by about a half inch.
All-Pro comes with a Shock/Coil Mount Bracket that offests the shock/coil about an inch rearward at the top mount... (The below image is the Original All-Pro Lift I got in May/June)