Hey all! I figure you guys get these questions all the time, but im new at this and have a few on lifts. First of all, I want a 4 inch suspention, and a 3 inch body lift for my GMC. With a 4 inch suspention lift, would i have to extend drivelines? and what else would i have to extend? And i have Rancho RS1000 shocks(RS9000's on the way), would they work with it? For my body lift, i was looking at a performance accesories 3 inch lift. I read that with a body lift, the T-case shift linkage and steering collumn would have to be extended? Would they? and what else might? Thanks ahead for the info!