69 Barracuda Flip Top Gas Cap

If you don't find one, here is a new one on eBay for $69 shipped.

[ame="http://www.ebay.com/itm/Mopar-69-70-Charger-69-Barracuda-Flip-Top-Gas-Cap-NEW-/360726258863?pt=Vintage_Car_Truck_Parts_Accessories&hash=item53fcf5e4af&vxp=mtr"]Mopar 69 70 Charger 69 Barracuda Flip Top Gas Cap New | eBay[/ame]