Description: #2 double, crew cab. #3, regular cab. CREW CAB. upper front-red/bl stripe. CREW CAB. upper rear. Extended cab. upper front. Extended cab. upper rear. Standard cab. upper. Helps dampen the vibrations between your vehicle's body and frame connection Made of shock absorbing material This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Collision parts are designed to help promote proper and safe repair