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  1. Trailer Leaf Springs
  2. Universal Group
  3. Slipper Springs
  4. 24-5/8 Inch Long
  5. 1500 lbs
  6. 3 Leaf
3-Leaf Slipper Spring w/ Radius End for 1,500-lb Trailer Axles - 24-5/8" Long
Universal Group

3-Leaf Slipper Spring w/ Radius End for 1,500-lb Trailer Axles - 24-5/8" Long

Part Number: SP-178275
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$36.42
Trailer Leaf Springs
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Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 1,500-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter. Great Prices for the best trailer leaf springs from Universal Group. 3-Leaf Slipper Spring w/ Radius End for 1,500-lb Trailer Axles - 24-5/8" Long part number SP-178275 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Universal Group Trailer Leaf Springs - SP-178275

  • Slipper Springs
  • 24-5/8 Inch Long
  • 1500 lbs
  • 3 Leaf
  • 1-3/4 Inch Wide
  • Standard Grade
  • 9/16 Inch Eye
  • Universal Group
  • Nylon Bushings

Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 1,500-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.


Features:

  • Leaf spring acts as part of your trailer's suspension system
    • Provides attachment point for your trailer's axle
  • Multiple leaves allow flexibility to absorb road shock
    • Allows for a smooth ride
    • Reduces wear and tear on trailer
    • Ensures level ride on bumpy and uneven surfaces
  • Sturdy steel construction
  • Nylon bushing included
  • Pre-mounted hangers or aftermarket hanger kit (sold separately) required for installation
    • Eye of spring attaches to hanger mounted on trailer frame
    • Slipper end slides into hanger or equalizer


Specs:

  • Quantity: 1 leaf spring
  • Spring capacity: 750 lbs
  • Axle capacity: 1,500 lbs
  • Length from center of spring eye to end of spring (unloaded): 24-5/8"
  • Spring width: 1-3/4"
  • Eye diameter with bushing: 9/16"
    • Eye diameter without bushing: 11/16"
  • Leaf thickness: 1/4"
  • Number of leaves: 3
  • Additional dimensions: see table


Radius End Slipper Spring

Part NumberABCDEF
SP-17827511"22-3/4"24-5/8"12"14-1/2"4"


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.



UNA-178 Universal Group Slipper Trailer Leaf Spring - 3 Leaf - 750-lb Capacity

Replaces WIE3





Customer Satisfaction Score:

Ratings & Reviews

4.8

632 reviews
Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 1,500-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.

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Show More Reviews

See what our Experts say about this Universal Group Trailer Leaf Springs

  • Replacement Leaf Springs For A 2007 Triton Dual PWC Springs With 2500lb Rating
    The 3-Leaf Slipper Spring w/ Radius End for 1,500-lb Trailer Axles - 24-5/8" Long # SP-178275 may be a fit however you will need to confirm the axle capacity first. Your existing leaf springs are going to be longer due to stretching over time. This leaf spring has a 22-3/4" eye to slipper rest measurement compared to your 23" and overall length is 24-5/8" compared to your 26". If you can let me know your axle capacity, I would be happy to confirm or recommend another option if necessary....
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  • Can 750 lb Trailer With 3,500 lb Axle Use Lower Rated Leaf Springs
    Yes, you can use a lower-rated leaf spring for your 750 lb trailer, though the capacity of your trailer is going to be that of its lowest-rated component. I assume your trailer is 750 lbs unloaded, so if you were to change to a 1,500 lb rated leaf spring, for example, then your trailer would only be able to have a fully loaded weight of 1,500 lbs. In regards to the correct replacements, that is going to depend on whether or not you have double-eye springs or slipper springs and a couple...
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  • Recommended Slipper Spring and Hanger to Make Trailer Functional
    We unfortunately do not have exactly the spring you are looking for. What I recommend is getting the 3-Leaf Slipper Spring w/ Radius End for 1,500-lb Trailer Axles - 24-5/8" Long # SP-178275 and moving your rear hanger forward because you will be within 1/4 inch of where your axle would have been with this spring. Then you will be able to replace springs as needed and still support your sailboat properly for transport. If you want a bolt on slipper spring hanger for the rear, I recommend...
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  • Determining Correct Replacement Slipper Spring For Dual Jet Ski Trailer
    I would be happy to help you find the correct replacement slipper leaf springs for your dual jet ski trailer, but you will need to identify the axle rating of your axle and the width of your slipper spring. To find the axle rating you will want to check the axle tag located on the center of the axle, as it will have the axle rating listed. If the axle tag is missing you can use the GVWR of the trailer divided by the number of axles to get a rough idea. For example if your trailer has...
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  • How to Determine Correct Slipper Spring Replacement for 1,500 lb Axle
    What happens to slipper springs is that over time they elongate and flatten out, particularly if your springs are considerably older. The most important measurement you mentioned was the 26 inches from the center of the spring eye to the end of the spring. Based on that the closest slipper spring we have that could work is the 3-Leaf Slipper Spring w/ Radius End for 1,500-lb Trailer Axles - 24-5/8" Long # SP-178275, which would work if you had a tandem-axle trailer. There are no slipper...
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  • Slipper Spring Recommendation for Continental Jet Ski Trailer
    You have what's called a slipper spring. Which the closest matching spring we have would be the part # SP-178275 which is for a 1,000 lb trailer axle like what a jet ski trailer would normally have and has a length of 24-5/8 inches from the front bolt back to the very end of it.
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  • Is There Difference in Quality Between 1,500 lb 3-Leaf Slipper Spring e99SR & SP-178275
    There really is not any type of quality difference between the two slipper springs: - 3-Leaf Slipper Spring w/ Radius End for 1,500-lb Trailer Axles - 24-5/8" Long # e99SR & # SP-178275 They both have the same measurements, steel construction, and nylon bushing in the spring eye. I'd honestly go with the least expensive option to save yourself some money. Also, I do recommend new bolts when mounting springs, the Spring-Eye Bolt with Locknut for Slipper Springs - 3-1/2" Long # 166079.
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  • Replacement Leaf Springs for a 1,500 Pound Boat Trailer
    The GVWR is the gross vehicle weight rating which is the most that the trailer can weight when loaded and ready to tow. Since that figure is 1,560 pounds it is likely that the axle on the trailer is a 2,000 pound axle. That would mean you need to look at leaf springs rated for 1,000 pounds each. There are 2 types of trailer leaf springs that we carry: double-eye and slipper. Double-eye springs have an eyelet on each end whereas slipper springs have one just on one end and sort of a hook...
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  • Determining Which Leaf Springs Fit A Continental AWC11e Trailer
    I would be happy to help you find the correct replacement springs for your Continental AWC11e Trailer, but unfortunately we do not have a break down of the specific components your trailer uses. To determine the correct replacement spring you will need to know the length and width of your current spring, and the rating of your axle. To find the length of the spring you will need to measure from the center of the spring eye to the end of the spring. It is important to make sure you measure...
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  • Replacement Slipper Springs for 1985 Harding Boat Trailer
    I do have options for you but exact replacements for old boat trailers are hard to come by. In the majority of cases, items will need to be altered for an exact fit which I assume is what is going to need to be done on your trailer as well. We don't have a slipper spring that is 1-3/4" wide x 28" long (center of eye to end of spring) with a 2,500, 3,000, or 3,500 lb capacity. However, leaf springs will fatten out over time which means the leaf spring that was originally installed on the...
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  • Can Lower Rated Leaf Springs Be Installed on a Trailer to Improve Ride Quality
    You can use a 1,000 lb capacity leaf spring on a 3,500 lb axle without any problems. You should note that your overall capacity would be limited to the lowest rated component of the trailer. Which in your case could be the 1,000 lb leaf springs. So basically you should be able to improve the ride quality of your trailer by going to a 1,000 lb rated spring like the # SP-177275 but you would sacrifice weight capacity. Since your trailer weighs 1,200 lbs you basically wouldn't be able to...
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  • Choosing The Right Replacement Boat Trailer Axle
    One thing to note, when picking the right trailer axle there can be a bit larger of a measurement when taking the Hub Face to Hub Face measurement, but the spring center to spring center measurement needs to be spot on. That being said, you could use this axle # 20440I-ST-60 or this axle # 20440I-EZ-60 which are both 60 inches long. So depending on what the offset of your wheels are, you may have them sticking out a bit farther than usual. The distance between the spring centers however,...
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  • 27 Inch Slipper Spring For A 4,300 Pound Trailer Axle
    We do not have a direct 27 inch slipper spring but depending on how old your springs are they could have flattened out a bit. The 4-Leaf Slipper Spring w/ Open Eye End for 4,300-pound Trailer Axles # e24SR has a spring capacity of 2,150 pounds and has an axle capacity of 4,300 pounds. The length of the spring is 27 inches and has a spring with of 1-3/4 inches. It has 4 leaves. If you could let me know the weight capacity of your axle I will be able to see if this will work for you. I...
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  • Can Leaf Springs with a Lower Weight Rating Be Used to Ease Ride of PWC Trailer
    You can use springs with a lower capacity than your existing springs to help provide an easier ride for your PWC. The # SP-178275 springs are a great choice. It is important to keep in mind that going with a lower weight rated spring will reduce the weight capacity of your trailer. When choosing a lower weight rated spring, you will want to ensure that you still have enough room in the weight capacity to carry your PWC, the weight of the trailer, as well as any additional components on...
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  • Troubleshooting Trailer Bounce on a Triple Axle Trailer
    There are a couple things that you can do that will help with the sway and bounce on your trailer when you are pulling it with your vehicle. The first thing you can try to do is tow the trailer level. If the tongue on the trailer is high, then the trailer will not have as much stability if it were level. I attached an FAQ article on picking out the correct rise/drop ball mount so that you can tow level. Another thing you can check is the suspension of the trailer. Worn out components...
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  • Leaf Spring Recommendation for Trailer with Slippers Springs that are 24-7/8 inches
    When picking out leaf springs there are two important things needed. You first need to get a spring that is rated for the weight of your trailer and then get one that is the proper length. Since you sent us a drawing that shows your slipper springs being 24-7/8 inches in length what you would need to do is determine what axle capacity you need. For a 2k axle you would need is the part # SP-179275 or for 1k axle part # SP-177275. Or for 1,500 lb axle you would need part # SP-178275.
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  • Replacement Slipper Spring To Upgrade Stock Malone Microsport Trailer Leaf Springs
    From what I can find online, it looks like the 2-Leaf Slipper Spring w/ Radius End for 1,000-lb Trailer Axles - 24-5/8" Long, # SP-177275 is the best upgrade option for your malone Microsport trailer. This spring is 24-5/8 inches from the center of the eye to the end of the spring. It is 1-3/4 inches wide and has an axle capacity of 1000 lbs. I've attached a video review for you. The only other option for a similar size is the 3-Leaf Slipper Spring w/ Radius End for 1,500-lb Trailer...
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  • Troubleshooting Harsh Ride for New Trailer with 2k Leaf Springs
    Sounds like you may have torqued down the shackle bolts so tight that they no longer pivot like they should when the spring compresses which is causing a very harsh ride. We recommend that shackle bolts be tightened fully, then backed off slightly to allow free movement. I attached a picture that shows that shackle angle that is recommended. Using 2,000 lb axles on a trailer that weighs 1,500 lbs when full loaded should work fine, but it might add to the harshness since a good portion...
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  • Measuring Replacement Slipper Springs For a 2018 Continental Model EC2K12-1200 Canoe/Kayak Trailer
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  • Replacement for 26-1/2 Inch Long Slipper Springs
    How are you measuring your old slipper springs? There are a few different ways which is why I ask. If you take a look at the attached photo you can see the different methods. Please let me know which points you are measuring from in addition to the width of the spring, and axle capacity on your trailer. With that in mind it is also important to note that a leaf spring will flatten over time which will then in turn cause them to be longer than they were when originally installed on the...
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  • 27 Long Slipper Springs for a Boat Trailer
    We do have 27" slipper springs. They are the 5-Leaf Slipper Spring w/ Hook End item # e67SR. These springs are 2" wide and have a 3,000 lbs capacity per spring. They have 5-leafs instead of your 3 but will work just fine on your boat trailer if your current springs are 2" wide. The closet springs we have that are only 1-3/4" wide are the 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles item # e33SR. These are 26-1/4" long.
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  • Do you have a spring that is 24 center to center and a reverse curve and closed eye?
    We do not have a spring that fits that specifically. In our 3 leaf springs we have two that are closed eye on one end and reverse curve on the other. The # SP-039275 measures 30" center to end of spring and the # SP-178275 measures 22-3/4" center to center. If you are able to go up to the 4 leaf spring we have # SP-231275 which measures 24-5/8" center to center. If you want to go the 4 spring route the added capacity of the 4 leaf would bring you up to 2,500 lbs per spring which will...
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  • Replacement Slipper Spring For Trailer Suspension that is 25 inches Long
    Since you said it was a hook leaf spring it sounds like you have a slipper spring on your trailer that you are looking to replace. Depending on your axle rating we have a few options. For a 1,000 lb axle part # WIC2, for a 2,000 lb axle part # SP-179275 , or for a 1,500 lb axle part # SP-178275. For a 4,000 lb axle part # 803T3.
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  • Recommended Replacement Slipper Spring Leaf Springs
    Thanks for the photo. Your leaf springs have definitely seen better days and it is time to replace a little while ago. Since you said one side is open and one closed, I assume you have slipper springs. The measurement on the springs is from the center of the eye to the end of the spring in the description. For the measurement you gave from bolt center to bolt center, we have two options: 3-Leaf Slipper Spring w/ Radius End for 1,500-lb Trailer Axles - 24-5/8" Long # SP-178275, and 4-Leaf...
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