If have a g.m. employee in your family you can get g.m. parts at dealer cost.
Alls you need is the part# and now the part #'s are now longer available through g.m. for cars as old as ours.
But if you can get the part # as alot of us have them. G.M. still has part's for our cars in stock. The only thing is you have to go to the warehouse where the parts are stored at. I think the free parts that your talking about are leaving the plant unnoticed.