Without knowing any more than what you posted, a generic answer:
Springs, shocks, longer brake lines, maybe some new shackle bushings.
Ditch the 2" lift shackes (ghetto as hell, and usually flimsy, too) for <1" lift greasable units.
Gotta address that slipyoke and rear driveshaft if you haven't already.
Shims for the rear axle, or weld on new perches.
You can live without trac bars and I would ditch them, but if you're hell-bent on keeping them, you'll need some brackets or adjustable bars to keep things centered.
Swaybar disconnects, or ditch the swaybar entirely.