Try it again $12.95 shipping for me. 
In most cases, gmpartsdirect.com total price (delivered to your business or home) is less than GM wholesale. Compare our prices with your local dealer. If you find these parts delivered to your door cheaper online, please let us know.
GM
Part #CategoryDescriptionPack QtyUnit PriceQuantityTotal Qty OrderedExt.
PriceYOU
SAVECore ChargeTOTAL*22937305
Lid,Panel,Tailgate PLATE1$21.04 1$21.04$13.34$0.00$21.04 Shipping & Processing & Handling:$12.95
Your Total Charges:$33.99