1999-2025 Ford F-350 & Chevy/GMC 3500 HD 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 ===
Vehicle Fitment
Sulastic model SA-06HD — verify cab, bed length, and leaf-spring count for your exact truck.
| Make | Model | Years | Fitment |
|---|---|---|---|
| Chevrolet | Silverado 3500 HD | 2011–2025 | All configs |
| Ford | F-350 Super Duty | 1999–2016 | All configs |
| GMC | Sierra 3500 HD | 2011–2025 | All configs |
Fitment data current as of June 2026. Set includes 2 shackles per axle.
Original: $530.00
-65%$530.00
$185.50Product Information
Product Information
Shipping & Returns
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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 ===
Vehicle Fitment
Sulastic model SA-06HD — verify cab, bed length, and leaf-spring count for your exact truck.
| Make | Model | Years | Fitment |
|---|---|---|---|
| Chevrolet | Silverado 3500 HD | 2011–2025 | All configs |
| Ford | F-350 Super Duty | 1999–2016 | All configs |
| GMC | Sierra 3500 HD | 2011–2025 | All configs |
Fitment data current as of June 2026. Set includes 2 shackles per axle.
