Lonffery Trailer Leaf Spring Hanger Kit for 1-3/4" Double-Eye Springs — Heavy-Duty Steel, Complete Replacement

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

This kit provides the hangers, shackle straps and fasteners required to replace worn or damaged trailer suspension mounting points. Built from high‑strength steel with dimensions matched to standard 1‑3/4" springs, the set is intended to restore proper spring alignment and dependable towing support for most 3,500 lb axle setups and similar single‑axle trailers.

How does the Lonffery kit fit 1‑3/4" double‑eye springs?

The components are sized to match common 1‑3/4" spring eyes and axle geometry for single‑axle trailers. Front and rear hangers accept the spring eye and let the shackle straps and bolts provide the pivot and connection to the trailer frame.

• Front hanger opening measures 3" to seat the front spring eye securely.
• Rear hanger dimensioned at 2‑1/5" to receive the trailing end of the spring.
• Includes shackle straps sized 4‑1/2" to allow proper articulation under load.
• Hardware uses 3" × 9/16" shackle bolts with matching 9/16" lock nuts for secure fastening.

What hardware is included and is it a full replacement kit?

The kit arrives with every part needed to replace both spring mounting points on a single axle, making it convenient for a full swap without sourcing separate bolts or straps. All pieces are coordinated so you get matched fasteners and fittings for both sides.

• 2 front hangers and 2 rear hangers to mount two springs or one double spring per side.
• 4 shackle straps to connect spring eyes to the hangers and allow movement.
• 6 shackle bolts plus 6 lock nuts to fasten straps and ensure vibration‑resistant joints.
• Hardware count suited for single‑axle trailer replacements rated up to 7,000 lbs.

How durable and easy to install is the Lonffery hanger kit?

Manufactured from heavy‑duty steel, the parts are engineered to withstand common towing loads and resist premature deformation. Installation is straightforward for anyone comfortable with basic trailer maintenance — you’ll remove old hangers and refit the new hangers, straps, and fasteners, adjusting position for correct spring alignment.

• Heavy‑gauge steel construction for improved load capacity and longevity.
• Pre‑measured dimensions simplify alignment with existing spring geometry.
• Simple bolt‑on assembly suitable for a garage or roadside repair with common tools.
• Adjustable placement allows fine‑tuning to match different axle and frame layouts.

Will this kit work for my trailer’s axle rating and spring setup?

The Lonffery kit is designed for single‑axle trailers and spring sizes commonly used on loads between 2,000 and 7,000 lbs. It pairs well with 3,500 lb spring configurations and many standard double‑eye 1‑3/4" springs, but you should confirm measurements and axle ratings before installation.

• Specifically engineered for 1‑3/4" double‑eye leaf springs and common single‑axle trailers.
• Compatible with many 3,500 lb setups and trailers within the 2,000–7,000 lb range.
• Measure spring eye diameter and frame mounting points to ensure fit.
• Not intended as a substitute for oversized commercial suspension systems.

Who is this for: The Lonffery Trailer Leaf Spring Hanger Kit is ideal for trailer owners, repair shops, and DIY mechanics who need a reliable, all‑in‑one replacement for worn or damaged spring hangers on single‑axle trailers. If you tow with a boat, utility, landscape, or equipment trailer that uses 1‑3/4" double‑eye leaf springs and you want matching hangers, straps, and hardware in a single purchase, this kit provides the essential components to restore proper suspension mounting and help maintain safe towing performance.