Description
These heavy-duty rear lowering shackles are built for1999–2026 Ford F-250, F-350, and F-450 trucks, including both2WD and 4WD models. Unlike most lowering shackles on the market, these are manufactured from1/4″ laser-cut steel and DOM tubing for serious strength and long-term durability.
Each shackle uses a polyurethane bushing with a grease zerk and a heavy-duty zinc-plated inner sleeve.The longer shackle design can also allow the rear leaf spring to flex more freely, giving the truck a slightly softer ride feel.
Key Features
- Fits rear of 1999–2026 Ford F-250, F-350, and F-450 trucks
- Compatible with 2WD and 4WD models
- Heavy-duty 1/4″ laser-cut steel construction
- DOM tubing for added strength
- Polyurethane bushings with grease zerks
- Zinc-plated inner sleeves
- Three adjustable leaf spring mounting locations
- Bolts in using OEM hardware
- Payload capacity is not affected
- Powder coated finish included standard
- Manufactured in-house in the USA
Adjustable Rear Drop Amounts
These shackles feature three mounting holes, allowing the user to fine-tune rear ride height when used with OEM leaf springs.
| Hole Position | Approximate Rear Drop |
|---|---|
| Position 1 | 1/4″ |
| Position 2 | 7/8″ |
| Position 3 | 1.25″ |
Note: Aftermarket leaf springs may respond differently than OEM leaf springs.
Installation Notes
- Installs at the rear side of the leaf spring only
- May change leaf spring, axle, and pinion angle
- Trucks with top-mounted overload springs may engage the overload sooner or differently
- Pinion angle changes may cause vibration in some applications
- Pinion shims may be required and are sold separately
- Trucks with overload air bags may require mount modification or replacement
Important: These shackles lower only the rear side of the leaf spring.Always verify driveline angle, overload spring clearance, and air bag mount compatibility after installation.
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