Sorry it's been so long since I was on here!
Yeah, the kit came with new shocks. My buddy put it all on around March-April, then I deployed in July and the truck barely moved. I only really drive the truck on base, and since I bought it over a year ago have put less than 1k miles on it. The kit came with Rough Country gas (not nitrogen) charged shocks. But ever since day one the ride has been incredibly stiff EXCEPT when I have a good amount of weight in the bed. A few weeks ago I had about 20 bags of mulch in the bed, and it was the smoothest riding truck I've ever been in.
Does that make it seem more and more like it definitely is the shocks--maybe they just came defective from the factory?