Description
The SAJ-03F adjustable sulastic model is:
– Flexible on load working range up to the truck’s GVWR because it can be adjusted on the limit stops by only using a wrench if it is required.
– Used when the truck is constantly under heavy loads and/or for long periods and/or the truck’s CURB weight has been modified by removing or adding weight to the bed as per example: camper, heavy tool boxes, compressors, etc.
– When the user is looking for a long-lasting part under extreme load and/or weather conditions.
– Best vibration and shock absorption because it has at least 2 times the mass of rubber than the preloaded model.
– Best lateral control because the forces are distributed on a bigger mass of rubber.
===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
Vehicle Fitment
Sulastic model SAJ-03F — verify cab, bed length, and leaf-spring count for your exact truck.
| Make | Model | Years | Fitment |
|---|---|---|---|
| Ford | F-250 Super Duty | 2017–2022 | All configs |
| Ford | F-350 Super Duty | 2017–2022 | All configs |
| Ford | F-450 Super Duty | 2017–2022 | All configs |
Fitment data current as of June 2026. Set includes 2 shackles per axle.






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