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Trailer axle double eye leaf spring labeled diagram

3500 LB Double Eye Spring

Name: 3500 LB Double Eye Spring
SKU: 31-SW4
Availability: InStock

$55.00

4 Leaf Double Eye Spring for 3,500 lbs. Axles. 25 1/4″ Eye-To-Eye, 1 3/4″ Wide.

In stock

SKU: 31-SW4 Categories: 3.5K Double Eye, Double Eye, Kits, Springs

Description
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4 leaf double eye spring for 3,500 lbs. axles. 25 1/4" eye to eye, 1 3/4" wide. This leaf spring comes pre-fitted with nylon bushings that have an I.D. of 9/16".

Upgrade or replace your trailer’s suspension with this high-quality Double Eye Leaf Spring, designed for 3,500 lb axle setups. Built for durability and a smooth ride, this spring ensures even weight distribution and reliable performance, reducing road shock and wear on your trailer.

Features:

Fits 3,500 lb Axles – Ideal for utility, boat, and enclosed trailers
Heavy-Duty Steel Construction – Long-lasting durability and strength
Double-Eye Design – Provides superior stability and smoother towing
Corrosion-Resistant Finish – Helps prevent rust for extended lifespan

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What Kind Of Leaf Springs Do You Have

Not sure what type of leaf spring your trailer has? In this video, we break down the key factors to help you correctly identify your trailer’s leaf springs.

You’ll learn:

The difference between double eye and slipper springs
How to measure spring length and width
How to count the number of leaves in your spring pack
Why proper identification matters for replacement and performance

Whether you’re replacing worn-out springs or upgrading your trailer’s suspension, this guide will make sure you get the right parts the first time.

3500 LB Double Eye Spring

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