how much lift do they net and what is required to in stall them?
See my build thread, page 3, for my install (
http://board.marlincrawler.com/index.php?topic=34658.60). I moved the front hanger 4.5" forward, and the rear hanger 3" back. If you're running a shorter shackle, then you might have to move the rear hanger back about 3.5".
I have no idea how much lift I got. I can probably clear 35's no problem.