So I have just hit 6000 miles on my 2010 cc auto Pro4x. I couldnt be happier with this truck as its my second Frontier. My list of mods until today is: Truxxx lift and level kit, Mag-hytec rear diff cover, factory tube steps, factory side mouldings, factory tow setup, royal purple diff fluid front and rear, and a whole lot of wax and leather care. My one complaint besides not being able to buy the crewcab prox in longbed is the payload capacity. Ive literally had some camping gear and two dirtbikes in it and it was sagging something fierce. I called Greg at Prg and had a chat about his deaver rear add on springs. Greg was def easy to deal with, very familiar with our trucks and all around a nice guy to talk too. After installing my rear springs I loaded my truck like usual and put my trailer on it.....no sag!! Im extremely happy with this product. I would buy the full suspension coilovers and all from him but have a 100k warrenty and drive it almost everyday. Oh yeah, if antbody decides to get these, use a gear puller to compress the springpack. It worked much better than c clamps.