These will allow you to run a better shackle angle, which will improve your off road capability as well as your on road ride.
These will allow you to lower your upper mounting position by 3 inches (lift would be around 1.5" if you maintain a vertical shackle), and move it forward up to 5". If you want to run longer spring you can simply flip the the shackle bracket.
SHIPPING IS ONLY $10 ON THESE (Will be added at checkout).
MADE FROM 1/4" PLATE
COMES WITH MOUNTING BOLT FOR SHACKLE
Intallation instructions can be seen here
http://www.naxja.org/forum/showthread.php?t=955999