Need help choosing an add-a-leaf system im not going lifted atleast not on this blazer....but i need to increase my payload seeing as the box im gonna have built for my L7's is more than likely gone weigh a good bit.....im looking at a few sets on 4Wheel Parts but dont know which to choose...help me out please....i like my current ride height but would like to compensate for that box with a little bit of rake....

http://www.4wheelparts.com/Add-A-Leaf.aspx?t_pt=5488

 

Its either the superlift long or short right? The long one would make more sense. They have a sale going on right now too.