Most AMP BedXtender Hd units mount without any additional hardware.
Some of the Mid-Small size trucks do require an extra bracket kit.

The 74601-01A is required for:
•GM S10/S15 Trucks 1996 - 2004
•Nissan Frontier, Standard Bed 1998-2012
•Nissan Pickups all through 1997
•Toyota Tacoma 1995-2004
•Toyota T100 1993-1998
•Toyota Pickup Regular & Stepside Bed 1984-1994

Nissan Frontier 1998-2012 ALSO requires the 74607-01A Kit on Standard bed trucks.

If you have a shell or tonneau cover and want to be able to simply pop the BedXtender out, use the 74605-01A Quick Latch Kit.

The 74602-01A allows a No-Drill installation on most late model Ford Trucks.