Reviewed By Charles W (Green Valley, AZ) Reviewed for a 2009 GMC Sierra —10/7/2016 7:27 AM
I was leary to begin with about a cover with only 4 clamps. After installing I took a 2000 mile trip. after about 500 miles I tightened the clamps and went on my way. When I got home all clamps had stayed tight. Went through a lot of rain but none got into the bed.