Rough pavement and heavy loads can beat up a suspension fast. This 5-leaf slipper spring flexes to resist those shocks, keeping your trailer steady and the ride smooth. Each spring supports 5,000 lbs for a total axle capacity of 10,000 lbs, so it’s built to handle serious weight without harsh bouncing. The multiple-leaf design spreads the load evenly and reduces wear and tear on the rest of the trailer.
When you’re hauling thousands of pounds, you need parts that don’t flex the wrong way. This spring is made from sturdy steel with a 2-1/2" width that gives it a strong footing in the suspension. It stays stable under load and helps keep your axle properly aligned mile after mile. The steel construction holds up to long-term use and keeps the trailer level even on uneven ground.
A tight connection keeps your suspension working right. The front eye of this spring measures 3/4" in diameter and takes a suspension bolt through the hanger on the frame. The radius-end slipper tail slides smoothly into the rear hanger or equalizer, letting the suspension move freely without binding. If a bushing is added, the inner eye diameter becomes 9/16", giving flexibility for different hardware setups.
Proper alignment is key to a suspension that tracks straight. This spring measures 30-1/2" from the center of the eye to the end of the slipper, with dimensions of 13-1/2" (A), 28" (B), 30-1/2" (C), 14" (D), 18" (E), and 4" (F) as listed for part number UNA-298. It mounts to hangers (sold separately) and should always be replaced in pairs to keep axle alignment and ride height consistent. That way both sides flex evenly and the trailer stays balanced every time you tow.
| Part Number | A | B | C | D | E | F |
|---|---|---|---|---|---|---|
| e29FV | 13-1/2" | 28" | 30-1/2" | 14" | 18" | 4" |

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello everybody, this is Jeff at etrailer.com. Today we'll take a look at the etrailer five-leaf slipper spring with the radius end for 10,000 pound trailer axles. Now this leaf spring here is gonna act as part of your trailer suspension system. It'll provide the attachment point for your trailer's axle. The multiple leaves on this will allow flexibility to absorb road shock, allows for a nice smooth ride, and it reduces wear and tear on your trailer. It ensures level ride on bumpy and uneven surfaces, and it is a sturdy steel construction.
Now on this end, the spring high end, the whole diameter here is 9/16 of an inch. Now, pre-mounted hangers or aftermarket hanger kits, which we do sell separately, are required for installation. Basically the eye right here of the spring will attach to a hanger that's mounted on your trailer frame, and then the slipper end right here will slide into a hanger or an equalizer. Now this is for a quantity of one leaf spring. The number of leaves is five, spring capacity is 5,000 pounds.
So when this is used or thrown on the other side, of the axle, it'll meet the 10,000 pound axle capacity. Couple measurements to give you, the length, which will be measured from the center of the spring right here to the end of the spring, if we go center to the end, it's gonna be right at 30 and a half inches for the length, the spring width, two and a half inches. Now on the product page of this, we do offer many other dimensions if you need those. Now one note I do wanna mention is that to ensure proper axle alignment and suspension performance, these springs should always be replaced in pairs. And we do recommend installation by a professional.
We do also offer many other suspension items for your trailer. Just click on the Trailer tab at the top of our website page, and also, if you have any additional questions regarding this part or any other item that we carry, please feel free to reach out to us so that we can help you get all your questions answered. But that's gonna do it for a look at the etrailer five-leaf slipper spring with the radius end for a 10,000 pound trailer axle.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Upgraded the leaf springs to tote my HD Glide down to the border for the Winter trip to Mexico. Easy swap out. I really don't know if it was necessary but I don't want to be that guy on the side of the highway with a disabled trailer. So yes I made and will go again this year.
We had a broken leaf Spring on our utility trailer. I found e-trailer on line carrying a leaf spring just like the one I needed. I ordered 2 of them and my order was processed fast and arrived in time. The ordering was easy and the website was user friendly.
Great service and fast shipping
Perfect fit. Will be using them today to haul 1600 lb.'s of gravel.
The leaf springs worked great for my Waverunner trailer. Exact measurements and got them installed with no issues.
The replacement leaf springs were a perfect fit for my 40yr old boat trailer.
New springs were overdue. These fit perfect on my small 13’ Boston Whaler trailer
I received my leaf springs very quickly. Perfect fit.
Leaf springs matched the originals perfectly. Price was very reasonable and shipping was fast.
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.
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!
Worked perfectly for my 2024 Road Toad Totes model. Oh, and you should let us enter the make and model for ones you don't have listed!!
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