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A stiff, bouncing trailer makes for a rough trip. This 4-Leaf Slipper Spring with a radius end flexes under load to smooth out bumps and reduce jolts from uneven pavement. With a spring capacity of 1,000 lbs and an axle capacity of 2,000 lbs, it keeps your setup level and steady mile after mile. The spring’s flexibility lets the axle move independently, cutting down on wear and tear across the frame and cargo.
When you’re hauling smaller loads, the right suspension makes all the difference. This slipper spring is designed specifically for 2,000-lb trailer axles, giving you the proper strength without unnecessary stiffness. The four leaves distribute weight evenly for balanced performance and long-term durability. It’s a solid, no-nonsense upgrade that restores your trailer’s handling and confidence on the road.
Getting your suspension to line up right starts with accurate sizing. This spring measures 24-5/8" from the center of the spring eye to the end of the radius and is 1-3/4" wide to match standard hanger setups. The front eye uses a 9/16" nylon-bushed hole for a snug fit on the hanger bolt, while the slipper end slides smoothly into the rear hanger or equalizer. The geometry is dialed in for simple, reliable installation.
Weak or rusted springs can sag and throw off your alignment. This one’s constructed from tough, 1/4"-thick steel leaves that handle daily use and rough conditions without giving in. The included nylon bushing reduces friction at the pivot point to extend the life of both the spring and the bolt. For best performance and alignment, replace your springs in pairs so your trailer tracks straight and rides even.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
The fenders , which are welded on were touching the tires under load. This is what got my attention, the new springs brought the trailer back to factory specifications. Very nice ride height now .
I needed springs for an older boat trailer. They were the slider type that are hard to find. Etrailer had them in stock and they were on my doorstep in 3 days. Great company to deal with and someone available if you have questions about their products.
Etrailer has always fulfilled my orders promptly. I highly recommend them to satisfy your orders too.
Excellent description. Perfect fit. Torch old ones off, reassemble new springd,u bolts and all new bolts. 5 hours total including grinding and painting axles
I ordered my axle kit and received it 30 days later, I expected it in a week. The hubs, U-bolt kit, springs and grease were shipping in a box, when I receive it the heavy parts had smashed the grease tube, and was quite the mess in the box. The U-bolt kit I ordered as suggested by etrailer was the wrong kit and the bolts were short (their system did not suggest the right kit for the thicker springs). I see there is a kit I could have ordered with longer bolts. When I went to tighten the lug bolts on the new hub I received, one bolt started to pull through the hub. I reported the grease problem to etrailer, they could not care less, so I thought it would not be worth my time to report the other issues. I guess I will purchase new u-bolts, grease, and perhaps a hub somewhere else.
The 4-Leaf slipper spring that I ordered came the next day, as promised. It was exactly what I needed for my trailer. Thank you
Bought to replace broken springs on my 14’ boat trailer. Best price I could find and they are still perfect a year later!
Well organised efficient and helpful I can not say more, Thanks for your help and rapid delivery of the product.
Perfect fit and fast shipping
Perfect fit for trailer. A year later and no issues. Would recommend.
Bolted right in and the smoker is level again. Thanks
James
9/3/2025
Its been a year. and shes still level and pretty.
The exact right parts which arrived two days early!
Good product
Easy install. Video assisted me so I measured correctly.
The leaf springs were a perfect replacement for what we needed and so were the trailer lights. Appreciate the notification of one of the items not being in stock and a substitute provided. However, the original item came available and was shipped in a timely manner.
Mariela
4/30/2025
Fabulous! We’ve had no issues at all! We’ve encountered some rough roads on our travels and the trailer has held up great! Thanks for a great product!
Awesome they were perfect
Allen
4/1/2026
Great but I over thot it lol you guys have a great product
Fast shipping!!
Leaf springs and fasteners where what I needed for my small boat trailer. Installation was easy once the nasty, rusted solid old fasteners were removed.
Paul
7/11/2025
Nothing to add after a year in service
When I receive the item. One of the leaf spring look damaged and like a used item. !! I called for replacement. They were giving me a hard time. I don’t understand why they would put a used item and what I paid for new. I wouldn’t not recommend this company for anybody to buy from. The customer service is very bad.
Springs fit PERFECTLY - performed BETTER than expected.
Chuck
4/30/2026
PERFECTLY!!! Could not be happier!!!
Lazer S.
4/30/2026
The leaf springs worked great for my Waverunner trailer. Exact measurements and got them installed with no issues.
New springs were overdue. These fit perfect on my small 13’ Boston Whaler trailer
Leaf springs matched the originals perfectly. Price was very reasonable and shipping was fast.
The leaves of these springs should be spray galvanized coated (this coating is not the same as paint) with cold galvanize coating before they are assembled. I think that that is better than the optional baked powder coat optional springs. With the baked powder coat, a chipped coating allows water to creep under the paint and cause heavy corrosion. When my springs become rusty and need service, I unbundle/separate the springs, clean the rust corrosion and then coat with cold galvanize coating before reassembly. With this method, I am able to use these springs for up to 56 years. Suggest to the manufacturer to "Spray coat the leaves with cold galvanize before assembly". Thanks.
Bought a new trailer from Lowes and immediately upgraded the leaf springs from two to four leaf springs. Existing were 500 lb and the new ones went to 1000 lb each for my 2000 lb axle. Perfect fit with outstanding fit and piece of mind gained for this project. Fast delivery and constant feedback from etrailer all the way!
Gwendolyn Y.
4/10/2025
Sounds like the perfect upgrade for the trailer, Robert! What are you going to be hauling?
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Martyn
7/11/2025
all items were delivered in a timely fashion and look sturdy and professionally built. The items are all mounted but circumstances have not allowed me to use them until this month. However I feel sure that they will more than adequately handle the task as other products have done in the past.