I recently installed a Rough Country 4 inch kit with shocks and stabilizer. Installation went well, no issues with kit. Plenty of issues with removal of my stock components. Lots of rusted bolts and everything worn out. With the replacement of every bushing/ball joint/tie rod, and cleaning/painting, took longer than anticipated.
I haven't put alot a miles on yet, but I am very pleased with the results. Truck seams to drive as before; suspension not rough/stiff/harsh as others have reviewed. No rub with 33x10.5x15's on stock wheels. Kit was complete, only suggestion is if you are wanting to "flex" the suspension to the max then get the extended brake hoses. Stock ones work, but at full droop they are maxed out. Decide what you want the truck to do, then build it the way you want. Good luck.