Parts of a 3" lift kit. (3" lift is a good safe height lift) Taller lifts will require all this and more.
*Front coils (needed)
*Front shocks (highly recommended)(Coils need to be assembled onto the shocks)
*Front Diff Drop (cheap, reduces CV angles to prolong boots)
*Rear coils (needed)
*Rear shocks (recommended, longer coils should have longer shocks)
*Pan Hard Bar Drop (recommended, keeps the PHB working closer to stock vertical arc, reduces the rear end wag feeling, without the axle will move on a diagonal arc)(needs to be welded on)
*Parking brake mount extension (recommended, it mounts on the rear axle and reduces tension in the cable when axle is drooped)
*Longer rear swaybar end links (recommended, the stock ones can limit droop)
*Extended rear brake line (usually not needed, sometimes the mount may need to be bent to allow enough slack when axle is at full droop)
***With the age of our vehicles the flexible rubber brake lines, F&R, may need replacement from age anyway. I found a quality set of 3 stainless steel lines***