- BY MANUFACTURER
GMC Topkick Window Visors, Rain Guards
GMC Topkick Window visors are multi-functional, which allows you to keep your window down and not getting wet while driving in the rain. It also enhances the look of the vehicles and reduce the wind noise on the road. These GMC Topkick vent visors are easy to install and made with high quality material (commonly made with ABS plastic from high pressure molding).