This Kit does NOT fit AWD Denali models and also does NOT fit the 2013 Z71 w/ Rancho Shocks. If you're looking for a moderate amount of lift for your truck and a solution that includes everything you need, right out of the box, for a problem free lift with great ride quality, you've come to the right place. The ReadyLift SST Lift Kit puts other kits to shame in performance and is a true complete lift kit that is 100% bolt on. There is no drilling, welding, or cutting required. The front of your truck is lifted with ReadyLift's famous 4" Powdercoated Steel Strut Extensions. 100% DOM tubular upper control arms are also included. These new heavy-duty control arms feature OE-style ball joints pressed into a strong crown that retains OEM geometry throughout the suspension cycle. CNC Machined Differential drop brackets are also included to maintain proper front axle and CV angles and won't break or bend. A Powdercoated plate steel skid plate finishes off the front lift. The rear of the truck is lifted with 3" OEM style cast iron lift blocks. They replace the original equipment 1.25" blocks, netting a 1.75" Rear lift and leveling out the truck. Rear shock extension keep the correct amount of travel for your existing rear shocks. The part number for this item is 69-3485 and it fits 2007-2013 Chevy Silverado / GMC Sierra 1500 4WD models. It does NOT fit AWD Denali models and also does NOT fit the 2013 Z71 w/ Rancho Shocks. You'll be able to use up to a 34" wheel with this lift kit (34x11.5 on factory wheels).