USA Door Seal Weatherstrip Pair 67-72 Chevy GMC C/K Pickup truck Lifetime. These are not the cheapest door opening seals on the market but they are the best made in the USA guaranteed for life with mitered corners. They come with instructions and are easy to install. These are the seals that go on the door opening that the door shuts against. This is for a left and right side one pair weatherstrips. Free shipping to lower 48 states all others pay exact cost of shipping.