Hellwig 7270 Big Wig Rear Sway Bar for 2011-2019 Chevy/GMC 2500HD/3500HD 2WD/4WD

Vehicle Fitment

• 2011-2019 Chevrolet Silverado 2500 HD (All Trims, 2WD/4WD, SRW & Dually)
• 2011-2019 Chevrolet Silverado 3500 HD (All Trims, 2WD/4WD, SRW & Dually, Includes Cab & Chassis)
• 2011-2019 GMC Sierra 2500 HD (All Trims, 2WD/4WD, SRW & Dually, Includes Cab & Chassis)
• 2011-2019 GMC Sierra 3500 HD (All Trims, 2WD/4WD, SRW & Dually, Includes Cab & Chassis)

Fitment Notes

• Designed for use with the factory exhaust system only; aftermarket exhaust configurations may require modification.
• Fits both Single Rear Wheel (SRW) and Dually configurations.
• Fits Cab & Chassis models on applicable years (2016-2019).
• Hellwig recommends pairing with a Hellwig front sway bar for a complete handling package.

Features

• Largest diameter Big Wig sway bar available from Hellwig - engineered specifically for heavy-duty tow and haul applications.
• Adjustable rate design allows users to tune stiffness based on load, towing, or hauling needs.
• Reduces body roll by over 20% compared to factory suspension, significantly improving stability under heavy loads.
• Precision engineered for vehicles with a high center of gravity, including slide-in truck campers and heavy trailers.
• Constructed from solid, heat-treated 4140 chromoly spring steel for superior strength and long-term durability.
• High-durometer polyurethane bushings included for enhanced performance and reduced noise and vibration.
• Quick bolt-on installation using factory mount locations - no cutting, drilling, or welding required.
• ISO 9001:2015 certified manufacturing ensures precision quality on every unit produced.
• Manufactured in the USA at Hellwig's Visalia, California facility.
• Backed by Hellwig's Limited Lifetime Warranty against manufacturing defects.

Specifications

• Part Number: 7270
• Bar Diameter: 1-5/16" (1.313 in.)
• Bar Material: Solid, heat-treated 4140 chromoly spring steel
• Position: Rear
• Rate Type: Adjustable
• Drivetrain: 2WD and 4WD
• Configuration: SRW and Dually compatible
• Shipping Weight: 48 lbs.
• Shipping Dimensions: 46 in. L x 28 in. W x 2 in. H
• UPC: 745662072704
• Warranty: Limited Lifetime

Included Components

• 1x Hellwig 7270 Big Wig Rear Sway Bar (1-5/16" diameter, chromoly)
• 1x Set of high-durometer polyurethane bushings
• 1x Complete heavy-duty mounting hardware kit
• 1x Installation instruction sheet

Product Description

The Hellwig 7270 Big Wig Rear Sway Bar is the ultimate anti-roll upgrade for 2011-2019 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD trucks. Most factory-equipped heavy-duty trucks either lack a rear sway bar altogether or come with a bar that is too small to meaningfully combat body roll under load. The 7270 addresses this directly with its massive 1-5/16" solid chromoly diameter - the largest available in the Hellwig lineup - engineered specifically for trucks operating with a high center of gravity. Whether you're hauling a slide-in truck camper, pulling a heavy gooseneck, or managing a stacker trailer, this bar dramatically reduces side-to-side sway, keeping all four tires planted and improving driver confidence through every turn.

The adjustable rate design sets the Big Wig apart from fixed-rate alternatives. Operators can tune the bar's stiffness to match specific load conditions, making it equally effective for both everyday driving and maximum-load hauling scenarios. Installation is straightforward and bolt-on, using the vehicle's factory mounting locations - no fabrication required. The included high-durometer polyurethane bushings and heavy-duty hardware are upsized compared to standard sway bar kits to withstand the amplified stress and vibration associated with heavy hauling and towing. This kit fits all 2WD and 4WD configurations, including SRW and Dually models, as well as Cab & Chassis variants on applicable years.

Built in Hellwig's ISO 9001:2015 certified factory in Visalia, California, the 7270 is a made-in-USA product backed by Hellwig's Limited Lifetime Warranty. It is compatible with factory exhaust systems and is recommended for use alongside a Hellwig front sway bar for drivers seeking a comprehensive front-to-rear handling solution. For heavy-duty truck owners who depend on their vehicle to perform safely and predictably under demanding conditions, the Hellwig 7270 Big Wig Rear Sway Bar is one of the most impactful suspension investments available.