Single Trailer Leaf Spring 5 Leaf Double Eye 3000 lbs Cap - Set 2

In this review of the Single Trailer Leaf Spring 5 Leaf Double Eye 3000 lbs Cap set, the bottom line is clear: this kit is aimed at trailer owners who need a direct, heavy-duty replacement for SW5 axles and want a sturdy, no-frills spring that restores ride height and load capacity. The reviewer found the springs are built from high strength 60Si2Mn manganese steel and come with a full U-bolt accessory kit, making them a practical choice for someone replacing worn trailer springs rather than upgrading suspension performance.

Key Features

• 5-Leaf Construction: The five leaves provide a balanced combination of load support and controlled flex for trailers rated up to 6000 lbs when using the paired springs.
• Exact Fitment: Eye-to-eye length of 25-1/4' and 9/16' bushing diameter mean the springs are designed to fit SW5-style hangers and mount points without extensive modification.
• 3000 lb Capacity Per Spring: Each spring is rated at 3000 lb so a matched pair supports a 6000 lb axle, restoring intended trailer load capacity when installed correctly.
• Complete U-bolt Kit: The kit includes four 7' long U-bolts, two tie plates and eight 1/2'-20 hex nuts sized for a 3' round axle, which saves a parts run and simplifies installation.
• Durable Materials and Finish: Made from 60Si2Mn manganese steel with two coats of paint, the springs resist corrosion and provide hardenability for long-term use.

Who It's For

This spring set is best for trailer owners, DIY mechanics, and small-fleet maintainers who need a direct replacement for SW5 suspension systems and value a straightforward installation with included U-bolts and tie plates. It is particularly useful when the objective is to bring a trailer back to its designed ride height and load capability.

Those who should look elsewhere include vehicle owners seeking suspension parts for cars, trucks, vans, tractors or any non-trailer application, because these springs are explicitly not designed for automobiles. Also consider higher-end aftermarket or tuned springs if you need ride comfort enhancements beyond restoring stock performance.

Pros & Cons

Pros

• Solid build quality from manganese steel offers strength and flexibility for trailer duty.
• Comes with a full accessory U-bolt kit sized for a 3' axle so parts are ready at install time.
• Designed to fit SW5 applications with exact 25-1/4' eye-to-eye length and 9/16' bushings for simple replacement.

Cons

• Some customers reported mixed experiences with hardware quality and assembly issues, so check fasteners carefully during installation.
• Not suitable for any automobile use; buyers must confirm trailer compatibility before purchasing.

Specifications

Leaves	5
Eye-to-Eye Length	25-1/4 in
Free Open	3 in
Leaf Width	1-3/4 in
Bushing Diameter	9/16 in
Leaf Thickness	5/16 in
Capacity Per Spring	3000 lb

Our Verdict

The Single Trailer Leaf Spring 5 Leaf Double Eye 3000 lbs set is a pragmatic replacement for SW5 trailer suspensions: it restores load capacity and ride height with durable manganese steel construction and a complete U-bolt kit. For trailer owners needing a direct, economical swap and willing to verify fitment and torque hardware properly, this is a good value; those seeking refined ride tuning or non-trailer use should look elsewhere.

Frequently Asked Questions

Will these springs fit my trailer?
They are designed for SW5 fitment with a 25-1/4 in eye-to-eye length and 9/16 in bushing, so confirm your hanger and axle match those dimensions.

What is included in the kit?
The package includes two springs per set and an accessory kit with four 7 in long U-bolts (1/2 in dia), two tie plates for 1-3/4 in or 2 in leaf springs, and eight 1/2-20 hex nuts.

Can I use these on a car or truck?
No, these springs are not designed for any automobiles, trucks, vans, or tractors and should only be used on compatible trailers.