Its just about time to start tearing into the truck for "winter mods". One thing I am going to do is put in a set of 56" springs in the back. I want to move the axle back to improve wheel base and departure angle but not to sure how far back would be just right. I have a zero rate in the rear so I can run the springs fowards and move it back 1 or 1.5 inches, or i could run the springs reversed and have the axle pushed back 4 inches, or 3, and 2.5 with the zero rate going one way or 5 and 5.5 with it going the other way. What do you guys think?