---
product_id: 601980052
title: "3.5k Light Duty Single Trailer Drop Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt Kit - 73/00 (Loose Spring Seats) / 5x4.5 Bolt Pattern"
brand: "the trailer parts outlet"
price: "$2627.40"
currency: USD
in_stock: true
reviews_count: 1
url: https://www.desertcart.ec/products/601980052-3-5k-light-duty-single-trailer-drop-axle-kit-suspension
store_origin: EC
region: Ecuador
---

# 5x4.5 bolt pattern 3.5k lbs load capacity EZ Lube grease access 3.5k Light Duty Single Trailer Drop Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt Kit - 73/00 (Loose Spring Seats) / 5x4.5 Bolt Pattern

**Brand:** the trailer parts outlet
**Price:** $2627.40
**Availability:** ✅ In Stock

## Summary

> 🚛 Upgrade your trailer game with effortless strength and style!

## Quick Answers

- **What is this?** 3.5k Light Duty Single Trailer Drop Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt Kit - 73/00 (Loose Spring Seats) / 5x4.5 Bolt Pattern by the trailer parts outlet
- **How much does it cost?** $2627.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/601980052-3-5k-light-duty-single-trailer-drop-axle-kit-suspension)

## Best For

- the trailer parts outlet enthusiasts

## Why This Product

- Trusted the trailer parts outlet brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Fitment:** 5x4.5 bolt pattern and loose spring seats ensure seamless customization and welding.
- • **Built to Haul Heavy:** Robust 3.5k lb axle supports your light-duty trailer needs with confidence.
- • **Maintenance Made Easy:** EZ Lube design lets you grease hubs without disassembling—save time and effort.
- • **Complete Kit Convenience:** Includes axle, leaf springs, U-bolts, and hanger kit—everything to get your trailer rolling fast.
- • **Durability You Can Trust:** High-strength steel axle tube engineered for long-lasting performance under pressure.

## Overview

The Trailer Parts Outlet 3.5k Light Duty Single Trailer Drop Axle Kit offers a fully assembled 4" drop axle with a 5x4.5 bolt pattern, paired with durable leaf springs, U-bolts, and hanger kit. Designed for light-duty trailers like utility, boat, and cargo trailers, it features an EZ Lube hub for easy maintenance and high-strength steel construction for reliable performance.

## Description

3.5k Light Duty Single Trailer Drop Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt Kit - 73/00 (Loose Spring Seats) / 5x4.5 Bolt Pattern

## Features

- 73/00 (Loose Spring Seats) / 5x4.5 Bolt Pattern
- What's Included: (1) 3.5k Idler Axle (5x4.5) - 4" Drop, (2) 1.75k 25.25" 4 leaf Double Eye Springs, (1) 3.5K U-Bolt Kits, (1) Double Eye Hanger Kit
- Pre-packaged kit to ensure proper fitment of running gear, OEM Grade Trailer Axles & Suspension, High Strength Steel Axle Tube Construction
- Standard 4" Drop Axle - Loose spring seats that will need to be welded on. EZ Lube Design: Removable rubber plug on the hub cap with easy access to a grease-able zerk fitting. Grease your axle without pulling off your whole entire hub.
- Designed for use on Light Duty Trailers: Utility, Boat, Car Haulers, ATV, Lawn & Landscape, Motorcycle, BBQ Pit, Cargo, Enclosed, RV Trailers and more

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | The Trailer Parts Outlet |
| Brand | The Trailer Parts Outlet |
| Item Weight | 90 pounds |
| Manufacturer Part Number | 35SLDAKTTK-DROPST7300545 |

## Images

![3.5k Light Duty Single Trailer Drop Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt Kit - 73/00 (Loose Spring Seats) / 5x4.5 Bolt Pattern - Image 1](https://m.media-amazon.com/images/I/711Pj9io56L.jpg)
![3.5k Light Duty Single Trailer Drop Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt Kit - 73/00 (Loose Spring Seats) / 5x4.5 Bolt Pattern - Image 2](https://m.media-amazon.com/images/I/61tObetyEjL.jpg)
![3.5k Light Duty Single Trailer Drop Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt Kit - 73/00 (Loose Spring Seats) / 5x4.5 Bolt Pattern - Image 3](https://m.media-amazon.com/images/I/713yej1l8tL.jpg)
![3.5k Light Duty Single Trailer Drop Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt Kit - 73/00 (Loose Spring Seats) / 5x4.5 Bolt Pattern - Image 4](https://m.media-amazon.com/images/I/61EiLgSHu4L.jpg)
![3.5k Light Duty Single Trailer Drop Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt Kit - 73/00 (Loose Spring Seats) / 5x4.5 Bolt Pattern - Image 5](https://m.media-amazon.com/images/I/61BeGipqJDL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐ Good parts/customer service sucks
*by R***. on August 7, 2025*

All the parts seem to be good so far. Their customer service is a joke and not much beyond a Q&A link that they send you back to when you email them with specific questions. Basically a waste of your time trying to get any technical advice. Other than that the kit works great once I figured a few things out myself without their help that I did ask for.

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**Shop now:** [https://www.desertcart.ec/products/601980052-3-5k-light-duty-single-trailer-drop-axle-kit-suspension](https://www.desertcart.ec/products/601980052-3-5k-light-duty-single-trailer-drop-axle-kit-suspension)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-16*