Hi Buickman,
There are no OEM's available from GM or the other sources I've tried. One side is available but the other is not. If you have a source, I'd appreciate if you'd pass it on. I asked my brother who is a "Mr. Goodwrench" and he said GM is abandoning parts for most of the older cars in the hopes it will sell more new cars. It seems they built these cars to good and they just keep running.
Paul