Extang Trifecta 2.0 Tonneau Cover - Folding - Bed Rail Attachment - Vinyl Top - Black - 6 Ft. 9" Bed - GM Fullsize Truck 2020 H762001L 1-1/2 in ID

1-1/2 in ID

570" ID that works well with our 951 dual valve springs

1/8 in NPT Female

The Pontiac Screen Windage Tray sandwiches between the block and the pan

Extang Trifecta 2.0 Tonneau Cover - Folding - Bed Rail Attachment - Vinyl Top - Black - 6 Ft. 9" Bed - GM Fullsize Truck 2020 H762001L 1-1/2 in IDChoose Simple: Extang's redesigned soft tri fold cover has a host of new features yet remains the easiest to install and simplest to use. The newly redesigned Trifecta 2. 0 is the strongest vinyl tri fold truck bed cover available, and built to last for years. Designed, manufactured and assembled in the USA! Your choice in soft tri fold covers is still simple! Will NOT fit with factory side storage boxesVehicle Applications: 2020 2023 Chevrolet