Complete hub to hub IFS includes 5 on 4.75 hub, manual rack and pinion, air bags, shock absorbers, complete upper control arms, complete lower control arms, 2" drop spindles, lower control crossmember, boxing in plates, upper control arm, upper bag mount, upper shock mount assembly, steering notchs. 
Inner boxing in plates located off reference point in chassis, boxing in plates have indicators for crossmember location, outer assembly plates located off reference point in chassis to ensure correct location for upper bag, upper shock, and upper control arm location. We take all the guess work out of locating all components.