I am looking for 2 reasonable priced left side vent duct tubes for a GS that is located behind the dash cluster and screws to the metal part of the upper dash.This is a black plastic piece 12-15 inches long and hooks to the vent so air will come to the vent grille in the dash cluster.For a non a/c car. Seems both my 70 and 71 were totally crushed and pieces missing. Thanks,Pat