The Cargo Missile Hazard: Stop Destroying Your HD Truck Bed

You just loaded a heavy, 40-pound steel 5th-wheel hitch and a pile of thick towing chains into the massive bed of your 2014–2018 GMC Sierra 2500HD. You leave them sitting loose on the bare, slippery steel floor and merge onto the highway. Suddenly, traffic comes to a dead stop in front of you. You slam your foot on the brake pedal of your 8,000-pound rig.

Behind you, physics takes over. That 40-pound steel hitch instantly turns into a high-speed cargo missile. It slides violently across the frictionless steel bed and smashes directly into your front bulkhead with terrifying force. You hear a massive BANG, and when you pull over to check, you find a massive, permanent dent punched completely through the front of your bed, inches away from shattering your rear cab window.

You just fell directly into the Rolling Cargo Missile Hazard.

A heavy-duty truck carrying heavy steel gear requires immense friction and dedicated storage. You cannot toss heavy metal into a slippery steel bed or onto a cheap plastic drop-in liner and expect it to stay put during a panic stop.

You don't need to risk cab damage; you need high-friction foam armor and locked-down tool storage.

In this guide, we explain exactly how elite bed utility engineers at BedRug, UnderCover, and AMP Research utilize impact-absorbing closed-cell foam and pivoting ABS storage boxes to completely lock down your heavy gear. We'll show you why cheap plastic drop-in liners violently rust your sheet metal, why the SwingCase is mandatory for towing gear, and how to safely command your payload zone.

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Impact-Absorbing Foam, Pivoting Storage, or Aluminum Cargo Containment?

Frequently Asked Questions (Bed Accessories)

Will a BedRug hold water and grow mold after a rainstorm?

Absolutely not. It is entirely waterproof.

While the BedRug looks and feels like a soft carpet, it is constructed from 100% closed-cell polypropylene plastic. It physically cannot absorb water. If you leave it out in a massive rainstorm, or spill battery acid and oil on it, the liquid simply sits on top or runs right out of your Sierra's factory bed drains. It will never grow mold, mildew, or rot.

Does the UnderCover SwingCase block me from hauling 4x8 sheets of plywood?

No, it is engineered for full bed utility.

The SwingCase is specifically designed to ride perfectly flush against the inner bedside, sitting directly over the wheel well. It does not protrude into the main cargo floor area, leaving the full 48-inch width between your wheel wells completely unobstructed for hauling standard sheets of drywall or plywood. Plus, you can simply lift it completely off its hinges in two seconds if you need max capacity.

Can I use an AMP Research BedXTender if I have a tonneau cover?

Yes, they work perfectly together.

The AMP BedXTender HD is designed to flip forward and backward completely inside the bed walls. As long as your tonneau cover's mounting rails do not drastically protrude into the lower bed space, the BedXTender will easily rotate underneath a closed tonneau cover, giving you the ultimate combination of covered security and cargo containment.

Lock the gear. Armor the steel.

Stop risking a catastrophic dent to your cab by letting heavy towing gear slide around your bare truck bed, and absolutely refuse to let a cheap plastic drop-in liner permanently rust your factory sheet metal. Upgrade to the massive, impact-absorbing defense of a BedRug, the pivoting, lockable storage of an UnderCover SwingCase, or the payload-expanding utility of an AMP Research BedXTender to instantly build an impenetrable, highly organized payload vault. Shop our verified collection of premium >>>2014–2018 GMC Sierra 2500HD Bed Accessories<<<.