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A Solid Inch-and-Five-Sixteenths Chromoly Bar for a Loaded Ram Rear Axle
Hellwig 7266 is a Big Wig rear sway bar for the 2007-2009 Dodge Ram 2500 and 3500, covering single rear wheel and dually trucks in both two-wheel and four-wheel drive. The bar itself is solid, heat-treated chromoly at 1-5/16 in diameter, which is a substantial step up in torsional stiffness over a hollow factory bar.
Key Features
- Designed specifically for heavy-duty tow and haul applications rather than general handling.
- Increased roll stiffness at the rear axle, which Hellwig frames as improved handling, comfort and safety when loaded.
- Solid, heat-treated chromoly bar rather than a tube.
- 1-5/16 in bar diameter across the Big Wig specification.
- Rear axle application, covering both single rear wheel and dually configurations.
- Covers 2WD and 4WD trucks within the same part number.
- All required mounting hardware is supplied with Hellwig 7266.
Fitment
| Vehicle | Configuration |
|---|---|
| Dodge Ram 2500 | 2007-2009, single rear wheel and dually, 2WD and 4WD, rear axle |
| Dodge Ram 3500 | 2007-2009, single rear wheel and dually, 2WD and 4WD, rear axle |
Both the SRW and dually rear axles are covered by the same bar, and Hellwig's catalogue title carries that detail explicitly.
Specifications
| Detail | Value |
|---|---|
| Brand | Hellwig |
| MPN | 7266 |
| Product line | Big Wig |
| Position | Rear |
| Bar diameter | 1-5/16 in |
| Construction | Solid, heat treated |
| Material | Chromoly spring steel; Hellwig's Big Wig bars are made from heavy-duty heat-treated 4140 chromoly |
| Drivetrain coverage | 2WD and 4WD |
| Rear axle coverage | SRW and dually |
| Intended use | Heavy-duty tow and haul |
| Mounting hardware | Included |
What's Included
- One Hellwig 7266 Big Wig rear sway bar
- All required mounting hardware
About Hellwig
Hellwig has built load-control products for heavy trucks for decades, and the Big Wig line is its largest-diameter sway bar range, aimed at trucks that tow or carry weight rather than at handling for its own sake. The 4140 chromoly solid bar and heat treatment are what allow the diameter to be used without excessive weight or brittleness. Hellwig 7266 is the Big Wig bar cut for the third-generation Ram heavy duty rear axle.
Related Parts
- Hellwig Big Wig 1-5/16 in rear sway bar for 03-08 Ram 2500 and 3500
- Hellwig Big Wig 1-5/16 in rear sway bar for 11-12 Ram 2500 and 3500
FAQ
Where does this bar mount on the truck?It is a rear sway bar that attaches to the rear axle and frame on the 2007-2009 Dodge Ram 2500 and 3500, working alongside whatever front bar the truck already has.
Does it fit a dually?Yes. Hellwig's catalogue lists this bar for both single rear wheel and dually trucks.
Does it cover 2WD and 4WD?Yes, both drivetrains are within the published application.
Is the bar solid or hollow?Solid, and heat treated. That is the main structural difference from most factory rear bars.
What does it actually change?It raises rear roll stiffness. Hellwig positions that as better control when the truck is towing or carrying a load.
Is hardware included?Yes, the bar ships with all required mounting hardware.
What torque should the fasteners be set to?Hellwig does not publish torque values on the fetched product page, so use the figures in the instruction sheet supplied in the box rather than a generic value.
Will it work with a lifted truck?Hellwig does not publish a lift limitation for this bar, and lift height changes the end-link geometry, so check link angle and clearance during a trial fit.
Is a matching front bar available?Hellwig catalogues front bars for Ram heavy duty trucks separately; this part number is rear only.
Installation Instructions
- Park on level ground, chock the front wheels and raise the rear of the truck so the axle hangs at a workable height on rated stands.
- Remove the factory rear sway bar if one is fitted, keeping the original hardware separate from the new kit.
- Offer the Big Wig bar up to the axle and identify the mounting points on both the axle and the frame before committing to any fastener.
- Fit the bushings and brackets loosely at the axle mounts so the bar can still be rotated for alignment.
- Connect the end links to the frame mounts, again leaving everything loose.
- Centre the bar across the axle and check clearance to the driveshaft, exhaust, fuel and brake lines, and the spring packs through the full range of travel.
- Tighten all fasteners to the values given in the instruction sheet supplied with the kit; no torque figures are published on Hellwig's product page for this part number.
- Lower the truck, drive it a short distance loaded and unloaded, then re-check every fastener and re-inspect clearances.
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