1999-2025 Ford F-350/F-450/F-550 Super Duty Sulastic Shackle for Rear Axle
===SULASTIC IMPROVES: ===
- Smooths out the ride by just replacing the OEM shackle
- Reduce Vibration and Shocks Not Absorbed by the Leaf-springs
- Stops the Bed Bouncing
- Improve Stability
- Reduce Braking Distance
- Load & Towing Capacity Not Affected
- Improves Handling and Control of the Vehicle
=== Set includes: 2 shackles === 2 Boxes (16"(L) x 13"(W) x 7"(H) / 38 lbs )
Vehicle Fitment
Sulastic model SAJ-03B — verify cab, bed length, and leaf-spring count for your exact truck.
| Make | Model | Years | Fitment |
|---|---|---|---|
| Ford | F-350 Super Duty | 1999–2025 | All configs |
| Ford | F-450 Super Duty | 1999–2025 | All configs |
| Ford | F-550 Super Duty | 1999–2025 | All configs |
Fitment data current as of June 2026. Set includes 2 shackles per axle.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
===SULASTIC IMPROVES: ===
- Smooths out the ride by just replacing the OEM shackle
- Reduce Vibration and Shocks Not Absorbed by the Leaf-springs
- Stops the Bed Bouncing
- Improve Stability
- Reduce Braking Distance
- Load & Towing Capacity Not Affected
- Improves Handling and Control of the Vehicle
=== Set includes: 2 shackles === 2 Boxes (16"(L) x 13"(W) x 7"(H) / 38 lbs )
Vehicle Fitment
Sulastic model SAJ-03B — verify cab, bed length, and leaf-spring count for your exact truck.
| Make | Model | Years | Fitment |
|---|---|---|---|
| Ford | F-350 Super Duty | 1999–2025 | All configs |
| Ford | F-450 Super Duty | 1999–2025 | All configs |
| Ford | F-550 Super Duty | 1999–2025 | All configs |
Fitment data current as of June 2026. Set includes 2 shackles per axle.
