* Works on 2013 2500 with 4 link front suspension only. Will not fit 1 Ton Trucks or Dually.* Will work with Power Wagon models with the addition of sway bar link kit D5301. Power Wagon models came factory with a 2" taller ride height so net lift gain will be 4" over stock.* Models with a 2-piece rear driveshaft may require rear carrier bearing kit ZOND5505.* Gas models may require modification to the front exhaust crossover pipe on driver side when using the transfer case indexing ring* If driveline vibration is present, some 6" kits may require the transfer case indexing kit (D5805). See installation instructions (step 17) for fitment details.