Racewill Trailer Shackle Kit 2-1/4" Straps (Model 225) — 9/16" Hardware, Nylon Bushings

This Racewill 2-1/4" Trailer Shackle Straps kit (model 225) is built for tandem axle double-eye spring suspensions and includes everything needed for a single shackle location: four 2-1/4" shackle straps, four 9/16" nylon bushings, and six 9/16"-18 x 3" shackle bolts with locking nuts. The components are crafted from corrosion-resistant materials and sized to match common trailer suspension standards, making it simple to swap worn shackles and restore proper spring movement.

How will these shackles improve my trailer suspension performance?

Replacing worn shackles restores the pivoting action between the leaf spring and hanger, which reduces binding and uneven wear. Fresh nylon bushings and new hardware help maintain smooth movement through travel and loading cycles.

• Replaces deteriorated straps to recover intended spring travel.
• Nylon bushings reduce metal-on-metal contact and noise.
• New bolts and locking nuts secure the assembly and resist loosening.

Are these parts compatible with my tandem axle double-eye springs?

The Racewill kit is designed specifically for double-eye springs on tandem-axle trailers that use 2-1/4" shackle straps and 9/16" hardware. Confirm the shackle strap length and bolt diameter on your trailer before ordering to ensure fitment.

• Strap length: 2-1/4" standard dimension for many trailer applications.
• Bushing size: four 9/16" nylon bushings included for correct fit.
• Hardware: six 9/16"-18 x 3" bolts with locking nuts for secure installation.

What materials and durability can I expect from this kit?

Components are made from premium, resilient metals with corrosion-resistant finishes and engineered nylon bushings for outdoor use. The kit is intended for trailer environments where moisture and road debris are common, offering longer life than untreated or thin stamped parts.

• Shackle straps: heavy-duty metal construction for load-bearing durability.
• Bushings: nylon to absorb shock and reduce wear between moving parts.
• Fasteners: locking nuts with proper bolt length to maintain clamping force.

How difficult is installation and what tools do I need?

Installation is straightforward for anyone comfortable with basic trailer suspension work. You will need common hand tools and safe jacking and axle support to take the load off the springs before removing the old shackles.

• Required tools: jack stands, sockets for 9/16"-18 bolts, wrench set, and torque wrench.
• Procedure: support axle, remove old bolts, swap bushings and straps, install new bolts and torque to spec.
• Tip: inspect hangers and spring eyes for wear while replacing shackles.

Who is this kit for? Owners and maintainers of tandem-axle trailers with double-eye leaf springs who need a reliable replacement shackle assembly—whether for preventive maintenance, seasonal inspection updates, or to address noisy or binding suspension components. Racewill's 1 Pack Trailer Shackles Kit supplies the common sizes and hardware required to get a single shackle location back to proper service without sourcing individual parts separately.