This is the vertical headlight adjustment screw knob for 1997-2004 Chevrolet Corvette C5 vehicles. This is a brand new, factory OEM, genuine GM part, not in the original box. This is the adjustment knob for the vertical axis on the headlights. This can be used on the left or right side headlight. Replace your old, broken, corroded adjustment knob with this brand new, factory GM part and get your headlights aimed correctly again and have perfect night time visibility! ***When you receive this unit you will notice the threaded portion does not move back and forth. It has to be installed the vehicle, and the ball seated in the cup for it to work properly.***

Part DISCONTINUED by GM

GM part # 11001278