This high security 16 gauge steel security lockbox mounts under the rear 60 percent bench seat in the 2007 to 2018 Chevy Silverado and GMC Sierra Crew Cab pick ups. The three-fifths width formfitting design of the Tuffy lockbox has over 2100 cubic inches of lockable storage while leaving room for an aftermarket sub-woofer or other gear under the rear passenger side seat. It's secured contents are easily accessed by flipping the 60 percent rear bench seat up and lifting the lid. The unique design allows the space beneath the 60 percent bench seat to be used to stow firearms or other long items securely. This lock box comes standard with Tuffy's Pry-Guard Locking System and a 10 tumbler double bitted security lock with built in weather seals. Optional three digit combination lock for key-less entry is available. Chamfered corners are incorporated into the design for easier passenger access and a more concealed form factor. The innovative mounting system is accessed from inside the box.