Lonffery Trailer Leaf Spring Hanger Kit for 1-3/4" Double-Eye Springs — Heavy-Duty Hardware & Pre-Sized Parts

Lonffery Trailer Leaf Spring Hanger Kit is a complete heavy‑duty hardware set engineered to mount 1-3/4" double‑eye leaf springs on single‑axle trailers rated 2,000–7,000 lbs.

When you need a reliable replacement or an upgrade for a trailer suspension, this Lonffery hanger kit supplies the hangers, shackle straps, bolts, and nuts sized for 1-3/4" double‑eye springs. Built from thick, high‑strength steel and sized specifically with 3" front hangers and 2-1/5" rear hangers, the set streamlines installation and restores proper axle alignment and load support for trailers up to 3,500 lb spring setups and beyond.

How does this kit fit 1-3/4" double‑eye leaf springs?

The kit is tailored to the common 1-3/4" double‑eye spring size used on many small to mid‑sized single‑axle trailers. Each hanger and shackle strap is dimensioned to accept the double eye without modification, helping reduce fitment guessing and on‑the‑trail issues.

• Front hanger: 3" wide opening to seat the spring eye securely.
• Rear hanger: 2-1/5" designed for stable shackle connection.
• Shackle straps: 4-1/2" length for correct articulation.
• Bolts and nuts: 3" × 9/16" shackle bolts with 9/16" lock nuts included.

What comes in the Lonffery complete hardware kit?

This package contains every part required for a full hanger replacement on a single axle trailer, eliminating the need to source mismatched fasteners. The count and sizes are matched to typical 3,500 lb spring configurations so you can replace both sides at once.

• 2 front hangers and 2 rear hangers (left/right mounting pairs).
• 4 shackle straps for rear attachment and spring articulation.
• 6 shackle bolts and 6 lock nuts for secure fastening.
• Hardware sized to standard trailer spring mounting dimensions.

How durable and easy to install is the hanger kit?

Manufactured from heavy‑duty steel, the Lonffery hangers and straps are built to withstand towing stresses and deliver long service life with proper maintenance. Installation is straightforward for anyone familiar with trailer axle work, and the kit’s standardized dimensions reduce trial‑and‑error alignment.

• High‑strength steel construction for enhanced load capacity.
• Pre‑sized parts speed installation and ensure proper alignment.
• Shackle design allows spring movement and shock absorption.
• Includes lock nuts to help prevent loosening under vibration.

Will this kit work with my trailer weight and axle setup?

The Lonffery kit is intended for single‑axle trailers using 1-3/4" double‑eye springs and is commonly paired with trailer ratings from 2,000 up to 7,000 lbs. While the hangers and hardware are sized for typical 3,500 lb spring assemblies, verify your trailer’s spring width and bolt diameter to confirm fit.

• Designed for single‑axle trailers and common 1-3/4" springs.
• Compatible with many 2,000–7,000 lb trailer configurations.
• Measure spring eye diameter and frame mounting points before ordering.
• Use appropriate torque specs when tightening bolts for safety.

Who is this for: The Lonffery Trailer Leaf Spring Hanger Kit is ideal for trailer owners, RV and boat trailer DIYers, and repair shops replacing worn hangers or rebuilding a suspension on single‑axle trailers. If you use 1-3/4" double‑eye springs and want a complete, correctly sized hardware set that simplifies fitting and improves reliability, this kit provides the hangers, shackles, and fasteners needed to finish the job with proper alignment.