Running the 1/2 ton chevy springs is very popular because you get great flex and you can get the springs for a pretty reasonable price. They also handle well on the road. This will require moving your spring mounts forward about 11 inches and running longer shackles. You can determine how much lift you get buy the shackle length. Up front, the Rancho 44044s are a good choice. this package offers a lot of flex and can be yours for about $600 or so. Stay away from blocks and Add-a-Leaves! Allpro spings and AOR springs are also awesome. AOR is pretty pricey though. Good luck.