irst time offered. This reproduction of the original under dash vent assembly is designed for use on early 1967-68 1st design models. Fits all models from 6 cyl. to big block, AC or non AC. After years of use, the defroster assembly can become brittle andcrack especially in cold weather. Replacing the vent assembly will once again allow the air flow to be directed upward to the window making your Camaro safe to drive in cold or rainy conditions by keeping your windshield defrosted.