I am building my truck for sand, snow and mud and want to run 38-39" tires. I'm not sure if I want a 6 inch lift and major trimming or 8" and minor trimming. I do want a decent amount of articulation but I've heard once you go over 6 inch lift the spring rates are real stiff. Anyone running this lift/tire combo? What are your comments? oh, and i don't want a body lift.