Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 2,900-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.
Features:
Specs:
| Part Number | A | B | C | D | E |
|---|---|---|---|---|---|
| SP-039275 | 13-5/16" | 30" | 15" | 17-3/4" | 4-7/8" |
Note: To ensure proper axle alignment and suspension performance, leaf springs should always be replaced in pairs.
Leaf springs are an integral part of your trailer suspension system. The leaf springs provide the attachment points for your trailer's axle, suspending it from the frame of your trailer. Each spring flexes to absorb road shock as you travel, allowing the axle to move somewhat independently of the rest of your trailer. This helps to reduce wear and tear on the trailer and also ensures a smooth ride.
Slipper leaf springs attach to hangers that are welded onto your trailer. The eye of this spring will attach to the front hanger with a suspension bolt. The flat slipper end of the spring will slide into the rear hanger. If you have a tandem- or triple-axle trailer, the slipper end will slide into the equalizer that connects multiple springs. The shape of the slipper end of a leaf spring may vary slightly due to differences among trailer manufacturers. Because of this, it's important to check your leaf spring's slipper end before purchasing a replacement spring.
To mount this spring, you will need hangers, a suspension bolt, and possibly a spring keeper bolt, depending on the design of the rear hanger. If you are simply replacing a spring, you may still have hangers welded onto your trailer, but it would be wise to replace the bolts as they can experience wear. It is also recommended that you replace the other leaf spring in your setup at the same time. Because springs can sag and elongate as they wear, this new spring may not exactly match the old one, and the alignment of your trailer could be affected.
If you are fabricating a trailer, you will need to purchase a hanger kit for installation. To determine the type of hanger kit that you need, you must know the specific type of leaf spring that you have, as well as your axle capacity. Depending on the hanger kits used with them, springs can be configured to work for single-, tandem- or triple-axle applications. Hangers and other suspension components can also be purchased separately if there isn't a complete kit that works for your setup.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to be taking a look at the 3 Leaf Slipper Spring for 2,900 pound trailer axles. It's made from a durable steel construction, it's designed to flex to absorb road shock and provide a smooth ride. It's also designed to reduce wear and tear on your trailer, and it's going to ensure a level ride on bumpy and uneven surfaces. It mounts to your trailer frame with hangers or a hanger kit, those items are sold separately. If you're in need of something like that you can check out some options here at etrailer.com. It's got 1 eye on the unit and it's got the slipper end.
Here on the eye it does come with the nylon bushing, so that is included and installed. This is a 3 leaf spring. Again, it's designed for 2,900 pound trailer axles. The spring itself is going to have a capacity of 1,450 pounds. A few dimensions to take a look at, we're going to measure from the center of the eye to the end of the spring. This is going to be 1 of the spring length measurements.
That's going to give us a measurement of right around 30 inches long. If we take a measurement from the center of the eye to the top of the curve right here, to this point that's going to give us a measurement of right around 28 inches long. The spring width, just measuring from edge to edge, is 1 and 3/4s of an inch and then the eye diameter is 9/16ths of an inch. To ensure proper axle alignment and suspension performance leaf springs should always be replaced in pairs. That's going to do it for today's look at the 3 Leaf Slipper Spring for 2,900 pound trailer axles..
Average Customer Rating: 4.9 out of 5 stars (105 Customer Reviews)
Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 2,900-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.Service was excellent. Ordered leaf springs on Monday and they were delivered two days later. My shipping was upgraded at no additional cost to me. I haven't installed the springs yet but they look great and they should fill my needs. I will order from you for any future needs. 424942
Wth rusted out leaf springs on my trailer but with zero experience replacing them, I contacted etrailer and Shawn was very helpful in selecting the right parts and taking me through the process. She was patient in terms of helping me take the right measurements and suggesting the bolts and pieces I needed to do the job right. Everything came well packaged and complete two days later. An hour after that the springs were in my trailer and now has a boat sitting on it. Thanks! 423136
Great Experience! When I noticed that the leaf springs on my 44 year old boat trailer had cracked I thought I would never find replacements. I fully expected to have to have something custom built. I was amazed when I found the fantastic diagrams/descriptions dimensions for replacement springs on etrailer.com The phone support person was wonderfully helpful in confirming if items were in stock and ready to ship. The replacement springs arrived on time and everything bolted up perfectly! Thanks for such a great site! 84053
Un flippin believable. The service was tops...it might have been the best service department I have ever dealt with. Super fast shipping and quality parts. There is no other place to go for your trailer parts. 759106
good parts, good price 747488
These springs were perfect for replacing the old worn out springs. It was a very easy swap to do. The trailer now tows very well. 746761
I couldn't believe they have been delivered already. Thank you! 733383
The lady I talked to on the phone was super helpful and very polite pleasure to deal with and great product. 721877
Great description on website of product. Fair pricing. Quick shipped to my address. Perfect fit for my boat trailer. Always a pleasure dealing with Etrailer! 718387
Fit was perfect. Shipping was fast and price was very reasonable. Happy customer here 694319
The springs and accessories that I bought are performing great. I'm very happy with the products and services. 674408
Fit perfect 672740
Good quality and superb fit. New springs went on in 20 minutes. We are [were] planning a trip so the quick and inexpensive shipping was great. Should the occation occur I will be a repeat customer. Thanks! Ted S 672267
Thanks for the prompt delivery and courteous service. The trailer springs I ordered were the exact parts I needed and fit well. I will complete the installation Tuesday afternoon and sent a photograph. 670756
great quality 640733
Very good I got what I need on time, price lower that other store. 638173
Product was easy to order and easy to track shipment. Fit perfectly. Good buy. 589164
It was just what I needed for my snowmobile trailer. Fast delivery and very helpful. 584067
The leaf springs worked out great excellent quality trailer is Towing very nice now 568919
Looks great. Best price . Arrived earlier than expected. 557469
Have an older trailer and had difficulty finding this particular part. Found it here, ordered it and received it quickly. Took it to a mechanic to install it and am still using my trailer with much satisfaction. Thank you, etrailer! 555086
I received the order on the 2900 Lbs slipper springs. The box was a little damaged but the springs did not have paint damage. The 1200 Lb springs were bottoming out is why I went to the new spring. The New spring is an exact fit. 541557
Mike L - 07/14/2018The 30" three leaf, slipper style spring was an exact replacement for the broken spring in this old boat trailer. Admittedly, the original design of the trailer suspension is a bit awkward, but the replacement spring fit right where it was supposed to. Would recommend. 525275
Excellent customer service and fast shipping time also product was packaged very well thanks 509716
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