Front and Rear Struts Complete Assembly Compatible for 2004-2011 Chevy Malibu MAXX, 2007-2009 Saturn Aura, 2005-2010 Pontiac G6 Shock Absorbers Replace 172199 172200 (4PCS). 【When/Why to Replace Shocks】If the vehicle is experiencing problems such as ride quality reduction, poor handling,noisy,insufficient stability, replacing the shocks can quickly and effectively resolve these problems.