Expedition One Mule SAM Rack for the GMC Sierra 2500/3500 HD/Denali w/wo Cab Lights
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⚖️ Heavy-Duty Steel Construction – Built to handle 500+ lbs dynamic load for serious overlanding.
🛠️ Modular Accessory Mounts – Compatible with rotopax, shovels, hi-lift jacks, and more.
⚙️ Cab-Light Compatible – Optional front fairing available with or without cutouts to seamlessly integrate with your factory cab lights.
⚖️ Robust & Lightweight: Comprised of 3/16" formed steel side rails for superior strength without excess weight.
🛡️ Industrial Powder Coating – Resists corrosion, UV damage, and trail scratches.
🌦️ All-Terrain Ready – Tested in Moab dust, Alaskan blizzards, and Baja heat.
- Description
- Prop 65
- Why Buy From Us
The Ultimate Overlanding Workhorse for Your Sierra 2500/3500 HD
Are you tired of flimsy bed racks that wobble at highway speeds or limit your gear options? Stop letting gear limitations dictate your adventures. The Mule SAM Rack transforms your GMC Sierra 2500/3500 HD into a mission-ready rig.
Engineered for contractors and overlanders who refuse to compromise, this rack solves the critical pain points: no weight anxiety (500+ lb capacity), and no wasted space (patented SAM accessory mounts). Whether you're hauling lumber by day or mounting a rooftop tent for weekend expeditions, this is the last rack you'll ever buy.
Load up, head out, and trust in a rack built in the USA for the toughest expeditions.
Lead Time: 4 Weeks. This rack is built to order to ensure premium fit.
Core Benefits & Key Features
- Heavy-Duty Hauling: With a dynamic load capacity of 250lbs and a static capacity of 500lbs, it's more than ready for your rooftop tent and heavy expedition gear.
- Total Mounting Freedom: The proprietary T-slot extruded aluminum load bars are compatible with a wide array of universal mounts for fuel packs, recovery boards, and more.
- Seamless Integration: Designed to work with the factory driver's side antenna and available with a form-fitting front fairing to reduce wind noise.
- Durable Finish: Side rails feature a tough textured black powder coat, while the load bars come in a standard silver anodized finish for corrosion resistance.
Innovative Design Points
- Proprietary Load Bars: Our heavy-duty extruded aluminum load bars offer significantly more surface area and strength than common off-the-shelf T-slot bars.
- Customizable Platform: Start with the standard 3 load bars for essential loads or add up to 2 more for a full-floor platform, giving you complete control over your setup.
Technical Specifications
| Side Rail Material | 3/16" Formed Steel |
| Load Bar Material | Proprietary HD Extruded Aluminum |
| Side Rail Finish | Textured Black Powder Coat |
| Load Bar Finish | Silver Anodized (Optional Black) |
| Dynamic Load Capacity | 250 lbs |
| Static Load Capacity | 500 lbs |
| Included Load Bars | 3 (Expandable to 5) |
| Country of Origin | Designed & Built in the USA |
Your Adventure, Guaranteed: Drive with Confidence!
We stand by the superior quality and durability of the GMC Sierra 2500/3500 HD/Denali Mule Sam Roof Rack. It's built to last a lifetime of adventures. If you're not 100% satisfied for any reason, simply contact us within 30 days of purchase. Lifetime Warranty. If you ever encounter an issue due to manufacturing defects, we'll make it right. Adventure with complete confidence.
Frequently Asked Questions
+ Will this rack fit my Sierra if I have the factory cab lights?
Yes, it will. We offer an optional front fairing specifically designed with a cutout to accommodate the factory cab lights on GMC Sierra HD and Denali models, ensuring a perfect fit.
+ Do I have to drill into my roof to install this rack?
Some 2500/3500 models variations may require minimal drilling. We always recommend professional installation.
+ What is the benefit of the anodized finish on the load bars?
The silver anodized finish on our aluminum load bars creates a hard, corrosion-resistant layer that protects the aluminum from the elements and wear and tear, ensuring long-lasting durability and performance. A black powder coat finish is also available as an option.
+ Can I add a light bar to the front of this rack?
Yes. The optional front fairing is designed to accommodate up to a 40-inch light bar, allowing for powerful, forward-facing illumination for your off-road adventures. We offer several premium light bar options at the time of purchase.
+ Can I install this without removing the cab lights?
Absolutely! The Mule SAM Rack's front crossbar is precision-notched to clear factory cab lights without modification.
+ What's the warranty coverage?
All Expedition One racks come with a lifetime structural warranty and 5-year finish warranty against manufacturing defects.
California Residents
Prop 65 Warning- Product may contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov
Proposition 65 is a California law passed in 1986. Its goals are to protect drinking water sources from toxic substances that may cause cancer and birth defects and to reduce or eliminate exposures to those chemicals generally, for example in consumer products, by requiring warnings in advance of those exposures.
The regulation requires the State of California to revise and republish yearly a list of chemicals known to the State of California to cause cancer or birth defects or other reproductive harm. The current list contains over 900 naturally occurring and synthetic chemicals. This regulation also requires manufacturers to place warnings on products that contain any of the chemicals listed by the State of California. No other states require warnings of this nature, and products with Prop 65 warning language are legal to sell in all states. Detailed information regarding requirements for compliance to the California Prop. 65 is can be found at: www.P65Warning.ca.gov
We get it. You've got a lot of choice when it comes to online retailers.
Here's why we think you should shop with us at ExtrailAuto.
- Price Match Guarantee. Best prices online guaranteed.
- 30 Day Easy Returns. No happy with your product, we'll find the solution.
- Great Service. We pride ourselves on the best service, anywhere.
Expedition One Mule SAM Rack for the GMC Sierra 2500/3500 HD/Denali w/wo Cab Lights
Reviews
Let customers speak for us
Great service from their staff. Robert help me through all the process with a request I had, he responded all emails in a timely manner and provided great help.
We received it within 3 days and installed the same day. Great awning and very well made.
the tent is very nice, comfortable and roomy.
Following the instructions was fairly easy. Its better to have second person to set it up. I really like the tent and the support that from ExtrailAuto. Really recommeded! Thanks
I love my trailhead roof top tent so much. It is so warm and spacious. Itās very simple to setup and put away. Extremely happy with my purchase. I waited to write a review till I used it multiple times so I could tell if I really liked it or not. Thereās not a thing I would want to change.
Give my jeep a solid sturdy look. Installation was ok if you follow the instructions properly.
Definitely a good product. Its super easy to install with instructions. It opens up nicely and shade coverage is good.
We have been on multiple trips with this tent. Its stable and comfortable with a good space for 2+ person to sleep in. Easy to setup and can be taken down under 10 minutes. The tent is waterproof and windproof and can be used during the winter season. Its worth the money and we are overall satisfied with our tent.
Material is of good quality. Easy to set up and teardown.
Looks great and very easy to install. Fits perfectly with no cutting on my Colorado 5 1/2 ft bed. As I unfolded the cover for the first time and each panel locked in place perfectly, I thought, Wow, that was easy.
