The SUVault Model 3025 is designed to fit under the rear seat of a 2009-2021 F150 and Raptor : 2017-2021 Super Duty Crew. It will not work in an extended cab. This unit comes with our new theft resistant mounting kit, if you want to buy it less mounting kit, deduct $50. There are new options so look carefully. These units are made from 12 gauge domestic cold rolled steel.