The stock shocks WILL WORK, some people will tell you they won't, but they will work, without problems. Mine have been on fer over a year, with no problems there's plenty of travel, and besides, the anti-sway bar will stop the axle long before the shock does. I do go off-road, and USE the suspension, it works perfect, granted I don't beat the he!! out of it, 'cause it is a 8,000# truck, but it does the job nicely.
Later, Rob