Everything I have read has always shown that you cannot get the interior trim for the rear quarter, unless you find it used somehow. I believe that I have found reproduction ones, but they are not cheap. I received a catalog from National Parts Depot, and they have some listed. Apparently it is a new item, that they just started making. They are $558.50 for the pair, in the catalog. You can get them in Vinyl, or Velour. Currently they are showing out of stock, online, but that might be because they are so new to their lineup of parts. Online price is also higher, probably for the same reason.