1988 VINYL ROOF GM w20A GM w2DA CODE NUMBER COLOR CODE NUMBER COLOR 11T White 72T Med Garnet Red Poly 11T white 76T Dk Garnet Red Poly 13T Silver Poly 7BT Med Rosewood Poly 17T Pearl Gray 79T Dk Red Poly 18T Black Poly 82T Med Rosewood Poly 19T Black 83T Med Sapphire Blue Poly 22T Lt Sapphire Blue Poly 84T Gunmetal Poly 26T Lt Sapphire Blue Poly 85T Lt Rosewood Poly 28T Black Sapphire Poly 86T Lt Antelope 29T Dk Sapphire Blue Poly 89T Autumn Maple Poly 3lT Dk Blue Poly 95T Lt Antelope Poly 5OT Flax 56T Copper Beige 57T Lt Beechwood Poly 58T Lt Chestnut Poly 62T Lt Beechwood Poly 67T Dk Antelope Poly 69T Med Beechwood Poly 1990 GENERAL MOTORS SERVICE PARTS OPERATIONS PONTIAC 22W 32 REV 6 90