Using the Kryptonite Death Grip Idler Arm is straightforward. Just install it on your 2011 - 2025 GMC 2500HD/3500 with a 6.6L Duramax engine according to the standard installation procedures. Whether your truck has a lifted, leveled, or lowered suspension, this idler arm will work great. For maintenance, you're in luck because the sealed double roller bearing system requires zero maintenance. Just check it occasionally for any signs of damage or wear. Remember, this product comes with a lifetime warranty, but you need to buy it from an authorized dealer and register the warranty within 90 days of purchase. Also, note that the warranty does not cover Heim Joints.