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Rough pavement and uneven ground can make a trailer bounce hard. This 3-leaf double-eye spring flexes just enough to soak up road shock and keep things steady. Each of the three leaves works together to cushion impact so the trailer rides smoother and the frame, cargo, and suspension take less abuse.
Strength matters when your trailer is loaded down. This spring is built from sturdy 1-3/4"" wide steel with a total axle capacity of 4,000 lbs and a spring capacity of 2,000 lbs. The 1/4"" thick leaves hold their shape under weight while still allowing flex where it’s needed. It gives solid support mile after mile without sagging out early.
Moisture and salt can take a toll on suspension parts. The powder-coated finish on this spring resists rust, making it ideal for marine environments or long stretches in wet conditions. The coating seals the steel against corrosion so the spring keeps working smoothly even after exposure to water or road grime.
The double-eye design makes installation straightforward—one end mounts to a hanger on the frame and the other connects to shackle straps or an equalizer. It comes with durable nylon bushings already in place, each with a 9/16"" inner diameter for standard suspension bolts. Everything lines up cleanly so you can bolt it in and restore proper suspension movement without extra prep work.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Take a quick look at this 3-Leaf Double Eye Spring for your 4,000-pound trailer axle. Now this Double Eye Leaf Spring is going to act as part of your trailer suspension system by providing an attachment point for your 4,000-pound axle. This is made from sturdy steel, and it is designed to flex, to absorb road shock, and give you a smooth ride, reducing wear and tear on your trailer, and this is going to ensure a level ride on those bumpy and uneven surfaces. As you probably know, Double Eye Leaf Springs attach to hangers that are welded onto your trailer. One end of the spring will attach directly to the hanger with the suspension bolt, and the other end will attach to shackle straps that are suspended from a hanger. These straps allow the spring to move and pivot so that it can better compensate for uneven pavement.
If you have a tandem or a triple-axle trailer, the shackle straps will be attached to the equalizer that connects multiple springs. And if you are in need of hangers, suspension bolts, or equalizers, you can find all of that here at etrailer.com. Now, in the eyes on each end are pre-installed nylon bushings. The eye diameter with the bushing is 9/16 of an inch, without the bushing it's 11/16 of an inch. And, again, this is a 1, 2, 3 leaf spring with the leaf thickness of 1/4 of an inch.
This spring by itself is rated at 2,000 pounds. That means if you install a pair, one on each side of your axle, you're covered for 4,000 pounds of trailer weight support, and to ensure proper axle alignment and suspension performance, leaf springs should always be replaced in pairs, and we do recommend installation by a professional. Now, looking at the length here measuring center of eye to center of eye, I hope you can see that there, we're sitting right at 25-1/4 inches on center. The spring width is 1-3/4 inches. So, if you're needing to replace worn-out springs on a light-to-medium-duty trailer, if your current suspension is sagging, noisy, or uneven, this is really going to be exactly what you need, especially if you are having suspension problems, and, again, we do recommend replacing them in pairs.
If you have any other additional questions, whether it's on this spring or anything else that we carry here at etrailer.com, don't hesitate to reach out to us. We do wanna make sure that you're getting exactly what you want and need. Well, again, my name is Andy. Thank you for joining me.
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Gwendolyn Y.
4/30/2026
Hey Tom, I definitely understand how frustrating that can be, having to fight with the bushings and bolts during install is never a good time. The way the spring eyelets are formed at the factory can sometimes cause the hole to be slightly oblong, which can make getting everything lined up more difficult than expected.