Description: These silicone bushings are a great fit for 2001 - 2010 GMC/Chevrolet HD models with a 6.6L Duramax engine. You have four color - hardness options: blue bushings with 40A hardness, green bushings with 50A hardness, yellow bushings with 60A hardness, and red bushings with 70A hardness. Part Number: 168030144.

Using these silicone bushings is easy. First, make sure your vehicle is parked on a flat surface and the engine is turned off. Locate the area where the old bushings are installed and carefully remove them. Then, install the new silicone bushings in their place. Be gentle to avoid any damage. As for maintenance, it's a good idea to check the bushings periodically for any signs of wear or damage. If you notice any cracks or excessive softening, it might be time to replace them. Also, keep the bushings clean by wiping them with a soft, dry cloth. Don't use any harsh chemicals as they can damage the silicone material.