Sounds like he's looking for the trim, not the weatherstrip. What year is the car? Need to know to find the correct trim.
Up through '86, the front and rear trims are one piece. On the '87 and '88s, the front and rear trims are three piece. I grabbed two sets of trims from the older cars hoping to get rid of the joint in the middle on my '87 and they don't work. The older ones are also shorter due to the different side trim on the car.