Description
Trojan Trailer Slipper Spring Kit 661006 is the perfect heavy-duty suspension solution for DIY trailer builders and upgraders. Designed for 40mm square axles, this kit delivers strength, stability, and ease of installation – ideal for box trailers, boat trailers, utility trailers, and more.
Key Features:
- Load Rating: 1250kg per pair – suitable for light to medium-duty trailer applications
- Spring Dimensions: 6-leaf configuration, 45mm wide, 6mm thick, 765mm overall length
- Black Painted Finish: Provides corrosion resistance and a neat look
- Anti-Rattle Design: Minimizes road noise and vibration for smoother towing
- Axle Compatibility: Suits 40mm square axle with included U-bolts and plates
Kit Components:
- 2 x 6 Leaf Eye-to-Slipper Springs (Black Painted)
- 2 x Galvanised U-Bolt Plates
- 4 x 40mm Square U-Bolts (Galvanised)
- 2 x Hangers
- 2 x Slipper Mounts
- 2 x Shackle Bolts
Installation Notes:
- Ensure correct torque on u-bolts to avoid over-compression of spring assembly
- Spring eye bolts should be greased and checked periodically
- Check axle alignment and hanger spacing before final fitting
Whether you’re building a new trailer or replacing worn-out suspension components, this Trojan Slipper Spring Kit offers a complete, high-quality solution with trusted Australian design and performance.






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