Hellwig 7677 Rear Sway Bar 1-1/4in 1999-2010 Ford F-250/F-350 Super Duty SRW 4WD

Vehicle Fitment

• 1999-2009 Ford F-250 Super Duty (All Trims, All Engines, 2WD/4WD, Single Rear Wheel)
• 1999-2010 Ford F-350 Super Duty (All Trims, All Engines, 2WD/4WD, Single Rear Wheel)

Fitment Notes

• Single Rear Wheel (SRW) applications only - does NOT fit Dually (DRW) models
• Fits both 2WD and 4WD drivetrain configurations
• F-250 fitment covers 1999-2009 only; F-350 fitment covers 1999-2010
• Designed for factory exhaust routing - verify exhaust configuration before installation
• Bolt-on installation - all required mounting hardware included; no drilling required

Features

• 1-1/4 inch (1.250 in.) solid heat-treated 4140 chromoly spring steel for maximum torsional rigidity
• Larger diameter than OEM bar delivers immediate reduction in body roll under cornering and towing loads
• Adjustable rate design allows tuning of rear roll stiffness to match load and driving style
• High-durometer polyurethane bushings for consistent, long-lasting performance
• Gray hammertone powder coat finish for corrosion resistance and durability
• Made in the USA - limited lifetime warranty, ISO 9001:2015 certified

Specifications

• Position: Rear
• Bar Type: Solid, Adjustable Rate
• Bar Diameter: 1-1/4 in. (1.250 in.)
• Material: Heat-Treated 4140 Chromoly Spring Steel
• Finish: Gray Hammertone Powder Coat
• Bushing Material: High-Durometer Polyurethane
• Rear Wheel Configuration: Single Rear Wheel (SRW) only
• Compatible Drivetrain: 2WD / 4WD
• Compatible Chassis: Ford Super Duty P221/P223 (1999-2010)
• Hardware: All Mounting Hardware Included
• Made in: USA

Included Components

• 1x Hellwig Rear Sway Bar (1-1/4 in.)
• 2x High-Durometer Polyurethane Bushing Brackets
• Complete Mounting Hardware Kit

Product Description

The Hellwig 7677 is a rear sway bar kit engineered specifically for the 1999-2009 Ford F-250 Super Duty and 1999-2010 Ford F-350 Super Duty with single rear wheels, covering all engine and drivetrain configurations at stock ride height. The Super Duty's heavy-duty construction makes it a capable towing and hauling platform, but the factory sway bar is frequently outmatched by the lateral forces generated during loaded cornering and high-speed lane changes. The 7677's 1-1/4 inch solid 4140 chromoly bar provides substantially greater roll resistance than the OEM unit, delivering improved stability, cornering confidence, and reduced body lean in both daily driving and loaded tow/haul conditions.

The adjustable rate design gives owners the flexibility to tune rear stiffness across multiple positions to match their load and driving preference, and the high-durometer polyurethane bushings maintain consistent feel over the life of the bar. Installation is a direct bolt-on with all mounting hardware included and no drilling required. Note this bar is designed for single rear wheel (SRW) Super Duty trucks only - Dually (DRW) applications are not supported. Made in the USA, ISO 9001:2015 certified, and backed by Hellwig's limited lifetime warranty.