Upgrade your lifted suspension with our selection of high performing 5-6" Rear Shocks! Overtime your existing shocks wear down which gives your truck a harsh, bouncy ride, complete with vibrations and excessive body roll. Our selection of shocks is built tough using precision design and built to last and deliver consistent dampening performance, which allows you to feel in control of your truck. Whether your towing, hauling a heavy load, off-roading or just want the best performance, our rear shocks deliver enhanced control and stability to your lifted rear end. Pair your new set of rear shocks with our selection of 5-6" Front Shocks. GM Duramax Fitments: 2007, 2009, 2010 GM 6.6L Duramax.Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali.Some exceptions apply, please see individual product pages for specific fitments.