When the job demands serious muscle, the GMC Sierra HD Max Trailering Package delivers strength, reliability, and confidence at every turn. Designed for drivers who tow heavy loads, haul equipment, or rely on their truck for demanding work, this package equips the Sierra HD with heavy-duty components engineered to perform under pressure.
Heavy-Duty Foundation You Can Trust
At the core of the Max Trailering Package is the 3500 HD frame, providing the structural backbone needed for extreme workloads. This is paired with 3500 HD leaf springs and a 3500 HD shock package, which work together to improve load control, ride stability, and durability—especially when towing or hauling at maximum capacity.
Supporting it all is a massive 12-inch rear axle, built to handle high torque and heavy trailer weights with confidence. The result is a truck that feels planted, controlled, and ready for real work.
Serious Towing Capability
With a gross vehicle weight rating (GVWR) of up to 11,200 lbs., the Sierra HD is built to manage the combined weight of the truck, passengers, cargo, and equipment when properly equipped. Whether you’re towing a large trailer or hauling heavy payloads, this package ensures the Sierra HD is up to the challenge.
Gooseneck & 5th Wheel Ready
The Gooseneck / 5th Wheel Prep Package is a standout feature for drivers who tow heavy trailers regularly. It includes:
- A factory-installed hitch platform designed to accept gooseneck or 5th wheel hitches
- A tray to store the hitch ball when not in use
- Stamped bed holes with protective caps for clean, precise hitch installation
- A box-mounted 7-pin trailer harness for easy electrical connections
This factory prep means fewer modifications and a cleaner, more integrated towing setup. (Additional optional equipment may be required depending on your towing configuration.)
Durable Spray-On Bedliner Protection
To protect the truck bed from the wear and tear of daily use, the Max Trailering Package includes a spray-on bedliner with a black, textured, non-skid finish.
- Covers the entire bed surface below the side rails
- Protects the front box top rail, gauge hole plugs, and tie-downs
- Is chemically bonded to the bed for a permanent, watertight seal
- Helps minimize cargo shifting during transport
The Sierra HD Max Trailering Package isn’t about extras—it’s about essentials for drivers who push their trucks to the limit. From its heavy-duty suspension and reinforced frame to its factory towing prep and bed protection, every feature is designed to make tough jobs easier and safer.