COMPATIBILITY – Fits 2007-2013 Chevrolet Silverado 1500; 2007-2013 GMC Sierra 1500 GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the “Amazon Confirmed Fit” bar has an “i” in a blue circle, this product has additional notes. Please hover over the “i” on the bar to see notes before making your purchase DESIGNED FOR TRUCKS -- Specifically designed for hardworking half-ton trucks that tow, haul, and plow HELPS CARRY THE LOAD -- Variable rate coil spring delivers a comfortable ride and maintains ride height for everyday driving conditions or supporting the load MAINTAINS VEHICLE CONTROL -- Monotube Technology delivers improved vehicle control over bumps, dips and potholes for vehicles originally equipped with monotube shocks and struts BUILT TO LAST -- Bearing with PTFE coating protects the rod guide to reduce damage to the seal and chrome piston rod provides durability and long service life IMPROVES PERFORMANCE -- Nitrogen gas-charge helps maintain tire to road contact for improved ride and handling by reducing aeration and shock fade REDUCES FRICTION -- Fluon-banded piston helps reduce friction between the piston and pressure tube to respond more quickly to changing road surfaces RESPONDS TO CHANGING CONDITIONS -- OE all-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown BOOT/JOUNCE BUMPER -- Protective boot reduces debris and moisture build-up on the rod surface, while jounce bumper reduces severe suspension movement