Agri-Cover Access 60090 TrailSeal Total Bed Seal Kit

Is this universal between makes? And what is this about turning of a dial???

Does this fit a 2009 Chevy pickup?

Does this fit a '17 gmc 1500 with a 6.5' bed

To verify, this does seal the openings at the top of the bed under the rails? Does it seal the front of the bed like it seals the tailgate?? Thank you