Thanks for info Dave. I also called and talked to the guy at "StockInteriors.com" and he was very helpful as well explaining options and said they would make it any way I wanted. They have several options and some that include the gas tank area and under the seat. So I think I'm gonna place an order with them as they sent me six color samples and seem to be reasonable. They also sell extra yards to match so I can glue some on the back walls and make a cover for the gas tank. Since I'll have the Silverado seats with the center jump seat/console that tank area will be visible most of the time.