Extang Trifecta ALX Tonneau Cover - Folding - Bed Rail Attachment - Vinyl Top - Black - 6 Ft. . 9" Bed - Super Duty MBMSE Various GM 2004-23

Various GM 2004-23

494 in Bore

210 lb/in Spring Rate

Widest range of adjustment on the market

Extang Trifecta ALX Tonneau Cover - Folding - Bed Rail Attachment - Vinyl Top - Black - 6 Ft. . 9" Bed - Super Duty MBMSE Various GM 2004-23Product Description: Tonneau Cover Trifecta ALX Folding Bed Rail Attachment Vinyl Top Black 6 ft 9 in Bed Super Duty Ford Fullsize Truck 1999 2016 Extang is one of the leading producers of Tonneau covers on the market today. Their products come in a variety of different configurations for most bed sizes. Extang Engineered it really means something and it's who we are. It began when our values and integrity met bold engineering excellence. A product