Hellwig 7265 Big Wig 1-5/16" Rear Sway Bar 2003-2008 Dodge Ram 2500/3500 SRW DRW

Vehicle Fitment

• 2003-2008 Dodge Ram 2500 - SRW (Single Rear Wheel) and DRW (Dually), 2WD/4WD - All Cab Styles - 5.7L HEMI V8, 5.9L Cummins Diesel (see Fitment Notes for 6.7L)
• 2003-2008 Dodge Ram 3500 - SRW (Single Rear Wheel) and DRW (Dually), 2WD/4WD - All Cab Styles - 5.7L HEMI V8, 5.9L Cummins Diesel (see Fitment Notes for 6.7L)

Fitment Notes

• 2008 Ram 2500/3500 with 6.7L Cummins Diesel: The 6.7L Cummins was introduced mid-2007 for the 2008 model year. Some sources indicate that the 7265 is confirmed for vehicles without the 6.7L engine due to potential differences in rear axle geometry or mounting hardware. If your 2008 Ram 2500 or 3500 is equipped with the 6.7L Cummins, verify fitment with Hellwig at 1-800-HELLWIG (435-5944) before ordering.
• Fitment requires 4-inch diameter rear axle tubes. The U-bolt mounting hardware in this kit is sized for the 4" axle tube found on the standard 2003-2008 Ram 2500/3500 rear axle. Trucks with non-standard axle tubes (lifted trucks with aftermarket axle housing components, for example) should verify axle tube diameter before ordering.
• Fits both SRW (single rear wheel) and DRW (dually / dual rear wheel) configurations of the Ram 2500 and 3500, making this one of the most versatile Big Wig sway bars in Hellwig's lineup for this platform.
• The 7265 is an adjustable sway bar - multiple mounting holes at the end link attachment points allow the effective roll stiffness to be tuned to match payload conditions, truck configuration, or driving preference.
• Compatible with air bag/air spring suspension kits - Hellwig confirms that Big Wig sway bars are designed to work alongside air bag setups (Firestone, Air Lift, etc.) and the two upgrades complement each other for maximum towing and hauling stability.
• All mounting hardware, polyurethane bushings, end link assemblies, U-bolts, and brackets are included. No additional hardware purchases are required.
• Most Ram 2500 and 3500 trucks do not come with a factory-installed rear sway bar from the factory - the 7265 adds a rear sway bar where none previously existed. This is the primary reason trucks of this class experience significant rear body roll and sway when towing or hauling heavy loads.

Features

• 1-5/16" (33.3mm) solid bar diameter - Hellwig's Big Wig series is its heaviest-duty sway bar lineup, specifically engineered for 3/4-ton and 1-ton trucks that tow, haul truck campers, or carry heavy payloads. The larger diameter delivers over 20% more roll stiffness compared to standard Hellwig sway bars, providing exceptional body roll control on trucks with high centers of gravity.
• Adjustable design with multiple end link mounting positions - the stiffness level of the rear suspension can be tuned by selecting from multiple end link attachment holes, allowing owners to configure the sway bar for different load conditions, driving styles, or seasonal towing requirements.
• Solid construction from heat-treated ASTM 4140 chromoly steel - the same alloy used in Hellwig's commercial and motorsport applications, hot-formed and heat-treated to a tensile strength of 170,000 psi for maximum torsional rigidity and fatigue resistance under sustained heavy-duty tow and haul loading.
• High-durometer polyurethane bushings at all mounting points - more resilient and compression-resistant than factory or aftermarket rubber bushings, maintaining precise bar positioning under sustained load and providing the bushing performance backed by Hellwig's industry-standard 1,000,000-mile bushing warranty.
• Designed for trucks without factory rear sway bars - the vast majority of Ram 2500 and 3500 trucks were sold without factory rear sway bars, leaving the rear suspension with no torsional stiffness control. The 7265 adds that missing roll resistance directly, transforming the truck's towing and hauling stability characteristics.
• Reduces rear body roll and lateral sway under heavy towing - critical for trucks carrying truck campers, pulling fifth-wheel trailers, hauling gooseneck loads, or towing horse/livestock trailers where trailer sway and body roll directly impact driver confidence and safety.
• Improves handling balance by increasing rear roll stiffness to complement the factory front sway bar, creating a more neutral cornering balance and reducing the tendency toward oversteer that develops when the rear of a heavily loaded truck rolls freely while the front stays relatively flat.
• Extends tire life by maintaining more even pressure distribution across all four tires during cornering and loaded driving, reducing the accelerated outer tire wear caused by excessive body roll.
• Bolt-on installation using factory axle mounting points with no drilling required. All hardware and installation instructions included.
• Gray hammertone powder coat finish for long-term corrosion resistance in road salt, grease, and wet-weather underbody environments on heavy-duty work trucks.
• Manufactured at Hellwig's ISO 9001 and ISO 14001 certified facility in Visalia, California - made in the USA since 1946, backed by Hellwig's Limited Lifetime Warranty against manufacturing defects and a 1,000,000-mile bushing warranty.

Specifications

• Sway Bar Position: Rear
• Series: Big Wig
• Bar Diameter: 1-5/16 inches (33.3mm / 1.3125")
• Bar Type: Solid
• Bar Adjustability: Adjustable (multiple end link hole positions)
• Material: Solid heat-treated ASTM 4140 chromoly steel
• Tensile Strength: 170,000 psi
• Finish: Gray hammertone powder coat
• Bushings: High-durometer polyurethane (included) - 1,000,000-mile warranty
• Hardware Included: Yes - complete kit (U-bolts, brackets, end links, bushings, all hardware)
• Drilling Required: No
• Country of Manufacture: USA (Visalia, CA - ISO 9001 / ISO 14001 certified)
• Warranty: Limited Lifetime
• UPC: 745662072650

Included Components

• 1x Solid 1-5/16" diameter heat-treated chromoly Big Wig rear sway bar, gray hammertone powder coated
• High-durometer polyurethane center bushing set
• U-bolt mounting hardware (sized for 4" diameter rear axle tubes)
• Mounting brackets and saddle plates
• End link assemblies with polyurethane bushings
• All associated bolts, nuts, and washers
• Installation instructions

Product Description

The Hellwig 7265 Big Wig is a 1-5/16" adjustable solid chromoly rear sway bar engineered specifically for the 2003-2008 Dodge Ram 2500 and Ram 3500 - in both SRW and DRW configurations, 2WD and 4WD. As the flagship of Hellwig's heavy-duty Big Wig sway bar lineup, the 7265 is designed specifically for tow and haul applications where maximum roll stiffness is needed: truck campers, fifth-wheel trailers, gooseneck loads, heavy livestock trailers, and any application where the Ram 2500/3500 operates with a high center of gravity or significant trailer tongue weight. The Big Wig series represents the largest-diameter sway bars in Hellwig's catalog, delivering over 20% more roll stiffness than standard sway bars - a meaningful difference on a platform where most trucks were shipped from the factory with no rear sway bar at all.

The 7265 is adjustable via multiple end link mounting hole positions, allowing owners to tune the roll stiffness for different load conditions and driving styles. The solid heat-treated chromoly construction and high-durometer polyurethane bushings - backed by Hellwig's 1,000,000-mile bushing warranty - ensure long-term durability under the demanding torsional stress cycles of sustained heavy-duty tow and haul use. The complete kit includes all mounting hardware, U-bolts, end link assemblies, brackets, and installation instructions, and fits the factory axle mounting points without drilling.

Two fitment notes deserve attention: buyers with 2008 Ram 2500/3500 trucks equipped with the 6.7L Cummins (introduced mid-2007 for the 2008 model year) should verify compatibility with Hellwig at 1-800-HELLWIG (435-5944) before ordering, as fitment is specifically confirmed for non-6.7L configurations. The kit is also sized for trucks with 4-inch diameter rear axle tubes - the standard specification for the 2003-2008 Ram 2500/3500 rear axle. This sway bar is fully compatible with air bag suspension kits and is commonly installed alongside air springs for a comprehensive rear suspension load management package. Manufactured at Hellwig's ISO 9001 and ISO 14001 certified facility in Visalia, California and backed by a Limited Lifetime Warranty.