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  1. #1

    Default Tonneau cover question

    Ok, I have been thinking about getting a tonneau cover for my White '03 Silverado Ext. Cab Long Bed. Here is the problem. I have a compressed natural gas (CNG) tank in the bed right behind the cab with a cover on it that is raised about 2 - 3 inches above the sides of the bed. Is there a tonneau cover available that will fit over this tank cover? I have seen CNG Silverados with tonneau covers before, but the top to the tank cover has been cut off to make the tonneau cover fit. Here is a picture to show what the tank cover looks like. Thanks.

    Click image for larger version. 

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    2003 Bi-Fuel 2500HD CNG/Gasoline (equivalent 40 MPG)
    2003 Bi-Fuel Cavalier CNG/Gasoline (equivalent 90 MPG)
    2011 Traverse

  2. #2


    I don't know of any tonneau that will cover the tank, but Extang makes a cover for trucks with a toolbox. It butts up against the toolbox. Maybe you can make it work with your tank.

    2005 Chevy Silverado Z71 Crew Cab
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    Warn brush guard w/Warn 9.5 XP winch, PIAA bulbs, Line-X bedliner, AWS Black tool chest, Extang tonneau cover
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  3. #3


    Extang will be a soft cover. Undercover has one called the BoxBuddy and Retrax will custom make one for you. If those don't work for you, consider a cap instead of a cover.

  4. #4


    If your getting a cover just ditch the CNG cover. You can hard or soft..even the roll up ones. All our trucks that are CNG where I work have hard covers and the tanks bare.

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  5. #5
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    Mar 2009
    Reidsville, North Carolina, United States


    I have the extang toolbox cover it does have a plate that is some what adjustable to all size toolboxes i really like mine. I have not had any leaks
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