ACDelco Professional 530387 Premium Gas Charged Rear Shock Absorber

A hardened chromed piston rod with micro cracks provides an ultrasmooth selflubricating corrosion and scratchresistant surface helping increase seal life Drawn over mandrel DOM pressure cylinder for high quality sealing properties and reduced internal friction to assist with longer product life Gas charged for reduced fluid aeration which can result in better response less foaming and more consistent control than nongas charged shocks Full perimeter multilip piston rod seal is permanently lubricated and helps keep dirt and contaminates from reaching the interior of the rod Oring hydraulic piston seal resulting in minimized piston blowby and consistent control Stroke Length869 inch Dust Shield Fits Chevrolet 20072013 Avalanche 20022006 Avalanche 25001500 20002011 Tahoe Suburban 25001500Cadillac 20022013 Escalade GMC 20002011 Yukon XL 2500 XL 1500