1. Trailer Leaf Spring Suspension
  2. Universal Group
  3. Leaf Springs
  4. Springs
  5. Slipper Springs - 1-3/4 Inch
  6. 26-1/4 Inch Long
4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4" Long

4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4" Long

Item # SP-264275
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Trailer Leaf Spring Suspension SP-264275 - Leaf Springs - Universal Group
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Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 4,300-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter. Lowest Prices for the best trailer leaf spring suspension from Universal Group. 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4" Long part number SP-264275 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Universal Group Trailer Leaf Spring Suspension - SP-264275

  • Leaf Springs
  • Springs
  • Slipper Springs - 1-3/4 Inch
  • 26-1/4 Inch Long
  • 4300 lbs
  • Universal Group

Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 4,300-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: 2,150 lbs
  • Axle capacity: 4,300 lbs
  • Length from center of spring eye to end of spring: 26-1/4"
  • Spring width: 1-3/4"
  • Eye diameter with bushing: 9/16"
    • Eye diameter without bushing: 1"
  • Leaf thickness: 3/8"
  • Number of leaves: 4
  • Additional dimensions: see table


Open Eye Slipper Spring

Part NumberABCDEF
SP-26427513-1/8"26-1/2"26-1/4"13-3/4"14-1/8"3-1/2"


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 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-264 Universal Group Slipper Trailer Leaf Spring - 4 Leaf - 2,150-lb Capacity

Replaces C-4





Video of 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4" Long

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Universal Group Trailer Suspension - Leaf Spring Suspension - SP-264275 Review

Today we're going to be taking a look at the 4 leaf slipper spring for 4,300 pound trailer axles. The unit's made from a durable steel construction, it's going to flex to absorb road shock and provide a nice smooth ride. This spring is designed to really help reduce wear and tear on your trailer. It's going to ensure a level ride even on bumpy and uneven surfaces. It's going to mount to the trailer frame with hangers or a hanger kit. Those items are sold separately and available here at etrailer.com if you're in need. Over here at the eye it does come with the included nylon bushing, now that's going to give us an eye diameter of 9/16ths of an inch.

As you can see this is a 4 leaf slipper spring, and because of the unique end on the slipper end this is considered an open slipper spring. It's going to give us a spring capacity of 2,150 pounds. Again it's designed for 4,300 pound trailer axles. A few measurements I want to go over with you real quick. Starting with the spring length, measuring from the center of the eye to the very end of the spring, that's going to give us a measurement of about 27 and 1 quarter inches. If we measure from the center of the eye to the center of this area right here, that's going to give us a measurement of about 26 and 1 quarter inches.

The spring width, measuring just from edge to edge is going to measure 1 and 3 quarters on an inch. Again the eye diameter is 9/16ths of an inch and please keep in mind, that in order to ensure proper axle alignment and suspension performance, these springs should always be replaced in pairs. That's going to do it for today's look at the 4 leaf slipper spring for 4,300 pound trailer axles.


Customer Reviews

4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4" Long - SP-264275

Average Customer Rating:  4.9 out of 5 stars   (91 Customer Reviews)

Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 4,300-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.

- SP-264275
by:

4 leaf 4300lb springs install on a 21’ boat trailer. Parts came earlier than expected and where of excellent quality. Couldn’t ask for a better experience. Thanks etrailer! 655012



- SP-264275
by:

Easy install and greatly improved how my car trailer handled. Full disclosure though... Someone had installed one eye-to-eye spring instead of a slipper spring on one of the axles on the left side of the trailer. Caused it to buck to the right of you hit a larger bump in the road. All nice n smooth now.... 443770



- SP-264275
by:

I replaced the original leaf springs that came on my EZLoader trailer with these and they have done me well. I have trailer the boat for a couple thousand miles and everything is holding up fine and there seems to be no sag in the springs. 435528



- SP-264275
by:

Awesome products, even better prices 499319


Comments
The products work great , good quality stuff I dont foresee any problems ever with the parts
Bob - 04/23/2019

54322

- SP-264275
by:

Ordered a couple Leaf spring for an EZLoader boat trailer (4300# 4 Leaf).... a fraction of the cost and high quality product. Web site provides good detail and video to ensure you are ordering the right parts. Product arrived ahead of schedule and great email communication and tracking. Installation took 30 minutes per side ... perfect fit!! 100% happy and fishin’ again :) 661510



- SP-264275
by:

Everything came and I was amazed at the fast shipping. I just finished installing everything and it all fit like a glove. Will need some more parts for the bunks later and will shop with you again. Enclosed you will find the parts I ordered and before and after photos. Thanks Alot 488337


Comments
Springs are very good and does the job. Thanks
Lewis - 03/23/2019

50893

- SP-264275
by:

Super easy to install! What they recommended to me was the perfect spring replacement. Just wish I would've bought four new bolts instead of two, lol. I'm loving etrailer so far! Keep up the great work! Pics are before and after. They obviously don't sell old springs. :) 542487



- SP-264275
by:

George at etrailer gave me upgraded shipping to ensure I would get my parts in a timely fashion. Parts were as described. Awesome company! Will do all my trailer ordering from etrailer!! 746497



- SP-264275
by:

Very reasonable price for a non standard spring. 727553



- SP-264275
by:

Great product and greater service. Nicole at etrailer has customer service fine tuned into an art. 726778



- SP-264275
by:

Well the leaf springs arrived very fast but unfortunately I ordered the wrong ones and am awaiting the correct ones. Customer service was extremely helpful and I will definitely order from you guys again. 726484



- SP-264275
by:

Perfect replacement part fit and function no alterations were necessary and fast shipping. I replaced the worn out springs on my 1987 Skeeter boat trailer and was mad that I had not done it sooner. All the replacement parts fit perfect. 711311



- SP-264275
by:

fast shipping this was great!!!!!!!!!!! !!!!!!! 708375



- SP-264275
by:

Fit the trailer and went on so easy 696831



- SP-264275
by:

They fit perfectly they work great 696502



- SP-264275
by:

Fit was perfect and they work great. 682640



- SP-264275
by:

Fit well, but have no road time on them. 660859



- SP-264275
by:

FIT GOOD 660566



- SP-264275
by:

It fit fine and works great 659291



- SP-264275
by:

everything was great very happy with all the stuff I bought 655927



- SP-264275
by:

These are nice!! 638528



- SP-264275
by:

Good Holding up well 610751



- SP-264275
by:

Works like it should. On a side note, these will rust if you use them on a boat trailer. 610187



- SP-264275
by:

Best price, fast shipping. 601178



- SP-264275
by:

Very happy with the timely delivery. Products were as described and fit perfect I would order parts again from etrailer and recommend them to others also Thank you Kirk 595601


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Show More Reviews

Ask the Experts about this Universal Group Trailer Leaf Spring Suspension

  • Bolts Needed To Install Slipper Springs
    For the spring eye you would use the Spring-Eye Bolt with Locknut for Slipper Springs - 3-1/2" Long # 166079, but slipper springs don't have the second spring eye, so a bolt is not used on the back end. You can also use a wet bolt like # 126B2, for less friction. The Shackle Bolt with Locknut for Double-Eye Springs - 3" Long # 166081 are for use with the spring and shackle straps used with a shackle straps on a tandem setup with an equalizer but it could be used for the springs and the...
    view full answer...
  • Correct Bushing and Bolt for 4-Leaf Slipper Spring # SP-264275
    The 4-Leaf Slipper Spring # SP-264275 that you referenced actually comes included with the nylon bushing but if a replacement is needed then the 9/16 inch # TRBU11561 that you mentioned would be the correct size and will work perfectly. The correct bolt for this setup is the Redline Spring-Eye Bolt # 166079 that features a 9/16 inch diameter and 3-1/2 inch length.
    view full answer...
  • Recommended Hangers for Slipper Spring Suspension
    The 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4" Long # SP-264275 is a 1-3/4 inch wide spring, so I recommend using the Single-Axle Trailer Hanger Kit for 1-3/4" Slipper Springs # APS3SE for these springs if you have a single axle trailer. If you have a tandem axle trailer, you will want to move to 2 inch wide springs like # SP-231275 and use a kit like # APT6SE.
    view full answer...
  • 2,000 lb Axle Leaf Spring Recommendation for Trailer that has 26-1/4 inch Long Springs
    Since trailer leaf springs tend to stretch over time the key to picking out the correct replacement is to go with one slightly shorter than what your current one measures. So a 26 inch long spring would most likely be what you need. For a 2,000 lb axle leaf spring that measures 26 inches in length we have the # SP-124275 which will fit and work well.
    view full answer...
  • How to Get Clearance for Slipper Spring Compressing on Top of Wheel Well
    To answer your first question a double-eye spring would not compress less than your current 4-Leaf Slipper Spring w/ Open Eye End # SP-264275 and I do not recommend going with a higher-rated spring than what your trailer is rated for as that will make your ride very stiff and unpleasant. The only real options you have to get more clearance are to raise the fender if you can or add one that has more height (I have linked our selection of fenders for you to check out) or to cut off your...
    view full answer...
  • Karavan Tandem Boat Trailer Slipper Spring Replacement, is Bushing On Hook End Required
    The 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4inch Long Item # SP-264275 that you referenced does not require an additional bushing for the hook end to attach to the rear hanger. The hook end of the spring will rest on the spring bolt and the only bushing needed is on the eye side of the leaf spring.
    view full answer...
  • Will Slipper Spring for 4,300-lb Trailer Axles Work For Axle Rated For 2600-Lb Axle
    I did some research and for a 2-inch square axle the rating can be between 2,200 to 3,500 lbs. It sounds like the tag on your trailer axle falls within that range. The 4-Leaf Slipper Spring, part # SP-264275 you asked about is designed to work with trailer axles up to 4,300-lbs. This can result in a little stiffer ride but the dimensions are most important so if the mounting dimensions are a match for your trailer, # SP-264275 will work great for you.
    view full answer...
  • Replacement Slipper Springs for EZ Loader Trailer with 26-1/4 Inch Springs
    The Universal Group 4-Leaf Slipper Spring # SP-264275 referenced in your question is indeed the closest option we have available for a slipper spring that matches the dimensions on your trailer. Slipper springs come in 1-3/4 inch, 2 inch, 2-1/2 inch, and 3 inch widths, so you most likely do have a 1-3/4 inch width spring set, especially since you mentioned that it looks a bit over 1-1/2 inches. The 26-1/4 inch length on this slipper spring matches the length on your set exactly. The...
    view full answer...
  • Replacement Slipper Leaf Spring Recommendation for 1985 Load Rite Trailer
    For a slipper spring that is 1-3/4 inches wide the highest capacity option we have is the # SP-264275. This is a 4,300 lb axle spring that measures 26-1/4 inches from eye to end of spring. I attached a picture that has all of the dimensions of the spring listed for you to check out and compare to your current spring.
    view full answer...
  • Slipper Spring Suspension Replacement on 1991 Shorelander
    A bushing isn't required for slipper springs, but if your bolt has one it would reside in the "C" pocket at the end of the spring. The one thing that would worry me is that extra drilled hole on that hanger being too close to the original one and the strength of the hanger being compromised. There are hangers that have two holes in them so you can use either height setting, but they come from the factory that way-these are either drilled after the fact or very worn and it wouldn't be a...
    view full answer...
  • Is Slipper Spring SP-264275 the Same as Universal Group UNA-264
    Yes, slipper spring # SP-264275 is the Universal Group part UNA-264 so they are the exact same. This is considered an open slipper spring. I he also included a link to our help article on slipper spring suspension for you.
    view full answer...
  • Is Bushing Required on Open Eye End of Slipper Spring
    A bushing is not required for the c-hook end (sometimes called an open eye end) of a slipper spring like the 4-Leaf Slipper Spring w/ Open Eye End # SP-264275. The closed eye of this spring does have a bushing included; I have added a link to a video review of this spring for you to take a look at, as well as a link to a help article on slipper spring suspension for you to take a look at.
    view full answer...
  • Availability of C Hook Leaf Spring for Caulkins Boat Trailer
    Since you have a C hook type spring you really need to replace it with another C hook unless you are okay with replacing all of the spring components. We only have one c hook spring as of right now part # SP-264275, but it has a 4,100 lb axle capacity and is 26-1/4 inches in length. If having a slightly lower capacity spring is okay then this should work otherwise.
    view full answer...
  • How to Pick Out Replacement Slipper Springs for a Boat Trailer with 2 inch Square Axles
    In order to pick out springs you need to remove the load on the trailer so that the leaf spring is not flattened out at all. You will want to measure from the center of the eye of the spring to the center of where the slipper spring contacts the hanger. If that distance is 26-1/4 inches and the capacity of the axle is 4,100 lbs the # SP-264275 would fit and work well. The bushing of this spring is 9/16 inch in diameter. You will want to use a 9/16 inch diameter bolt so you can either...
    view full answer...
  • How to Select the Correct Leaf Spring Size for a Tandem Axle Trailer with Slipper Springs
    To determine the correct slipper springs for your tandem axle trailer, the axle capacity will need to be determined. Selecting a spring by length alone could cause the selection to be under or over capacity substantially. If your spring is shaped like the 4-Leaf Slipper Spring for 4,100-lb Trailer Axles, # SP-264275, and each axle capacity is 4,100 lbs or just below that, then this spring should work for you. This is the only spring we have with the slipper end shaped this way. If...
    view full answer...
  • Replacement Leaf Spring Needed with One Open End on a Bayliner Trailer
    It sounds like the 4-Leaf Slipper Spring w/ Open Eye End # SP-264275 could be what you are looking for. Over time leaf springs can stretch so this one being 1/4" shorter than your current leaf spring is most likely correct. This leaf spring is rated for a 4,300 lb axle and comes with 4 leafs. The amount of leafs isn't really important since you are simply looking for the weight capacity to be right at or slightly more than what your axle is rated for. The only real issue that I see...
    view full answer...
  • Installation of Slipper Spring with Open Eye End
    Slipper Springs like # SP-264275 do not use a bolt and bushing for the open eye end of the spring. It connects directly to the hanger using a slipper spring hanger kit.
    view full answer...
  • Which Way Do Slipper Springs Face on a Trailer
    With slipper springs you will want the eyes of the spring facing the front of the trailer and the open end facing the back. I attached a help article on slipper springs for you to check out as well.
    view full answer...
  • How to Measure Leaf Springs to Find Replacement Parts
    The 26-1/4 inch measurement of # SP-264275 is taken center on center from one bolt to the other. On the diagram I've attached it's measurement "C". This is the measurement you'll want to make on your springs. Then find the same length for a replacement. Keep in mind that your springs, being used and worn, may have elongated so your might be a little longer than the new ones.
    view full answer...
  • Hangers Needed For Slipper Springs
    First, you will want to make sure you choose hangers that are designed for slipper springs. The width of the hanger should match the width of the leaf spring. You could use the existing bolts, but hangers use different diameter bolts. It will be important to make sure the bolts you plan on using will fit in the hangers and springs. In addition to the 4 shackle bolts, you will also need 2 equalizer bolts and at least 4 spring keeper bolts. Using a kit is the easiest way to make sure...
    view full answer...
  • Replacement Boat Trailer Slipper Spring for a 1998 Calkins Boat Trailer
    Based on what you have described and the measurements you have taken I do believe that slipper spring # SP-264275 is correct. The SP-264275 length is 26-1/4 inches so the mid-point length of your existing spring is on par with that. The old springs have probably stretched and worn enough to throw the exact measurement off a bit.
    view full answer...
  • What Size Bushings Does the Trailer Slipper Spring Part # SP-264275 Use
    The bushings of the 4-Leaf Spring part # SP-264275 have a 9/16 hole diameter. If you are looking for a replacement bushing you would want the part # TRBU11561. This bushing has a 9/16 inner diameter and an outer diameter of 1.02 inches.
    view full answer...
  • Replacement Slipper Spring Needed That is 1-3/4" Wide and 27-1/2" Long
    We do have a selection of slipper springs that are 1-3/4" wide which I have linked for you to check out. The one that is closest to the size that you mentioned is the 4-Leaf Slipper Spring # SP-264275 which is rated for 4,300 lb trailer axles. It measures 26-1/4" long which may still work out for you since leaf springs can stretch out over time. A leaf spring doesn't necessarily have to have the same amount of leaves as the one it is replacing. You just have to be sure that it has...
    view full answer...
  • Availability of 4,300 lb Axle Slipper Spring for Trailer
    When picking out a leaf spring you really want to base it on the capacity of the axle and the length more so than the amount of leafs in the spring pack. If you can get me the axle capacity of your trailer and how long you need I can get you the best recommendation. If you have a 4,300 lb axle and need a 26 inch long spring though the part # SP-264275 is your best option overall and would work great.
    view full answer...
  • Looking for a C-Hook Leaf Spring That Measures 26-1/2 Inches Long
    We have the 4-Leaf Spring C-Hook Spring, # SP-264275, that measures 26-1/2 inches from center of the bolt eye to the edge of the C-hook. See attached picture diagram. Unfortunately, we do not have a spring with only 3 leafs in this style leaf spring.
    view full answer...
  • Replacing Boat Trailer 3-Leaf Slipper Springs to Correct for Reduced Wheel/Fender Clearance
    Axle capacity is usually found on a plate or sticker affixed to the axle itself. 3-leaf slipper springs in the 1-3/4-inch width you referenced can be seen on the included link. Since well-worn springs like yours tend to become elongated I suspect your existing springs when new were this length and that your axle is rated for 1500-lbs. In some instances it may be possible to find higher-rated springs that will fit on your trailer but substituting these will not necessarily increase the...
    view full answer...
  • Recommendation for Leaf Springs on a Boat Trailer
    Good news, I can help you pick out the leaf springs needed to replace your current ones. It sounds like you might need leaf springs like this # SP-264275. They have a slightly lower capacity than you specified, but they match the length and leaves of your current springs. I would verify the axle capacity of your trailer to make sure the 2,050 lbs. weight rating will work for you. I have linked a Help Article for your convenience. If this spring does not meet your needs please send...
    view full answer...
  • Slipper Spring Recommendation for a Jon Boat Trailer
    Based on the dimensions you listed I think the part # SP-264275 would fit. It's 26-14 inches long, has 13-1/4 from the eye to the mid point of the spring and has an overall height of 3-1/2 inches. Each spring is rated at 2,050 lbs. For a lighter rated spring with very similar dimensions that would work check out part # SP-038275. It has a 1,000 lb capacity. It doesn't have the hook at then of the spring, but it would work much better. Sounds like you were already planning on doing...
    view full answer...
  • Single Axle Hanger Kit Recommendation for Use with Slipper Spring SP-264275
    For a single axle slipper spring hanger kit to be used with the slipper spring part # SP-264275 you'd want to use the part # APS3SE.
    view full answer...
  • Confirming Correct Leaf Spring Size Measurements
    It sounds like you already have done the correct center of one eye to the center of the other eye measurement. If your measurement is slightly off, sometimes the leaf spring may still work as leaf springs do expand by as much as 3/4-inch over time. Since you measured 26" and the 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles # SP-264275 is already 26-1/4" long, you will want a shorter option though I don't see we have that in an open eye end style of spring.
    view full answer...

Do you have a question about this Trailer Leaf Spring Suspension?




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Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Jeffrey L
Installed by:
Cole B
Written by:
Alexander C

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