3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 23-1/8" Long

3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 23-1/8" Long

Item # SP-216275

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Trailer Leaf Spring Suspension

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Trailer Leaf Spring Suspension SP-216275 - 3500 lbs - Universal Group
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  • Leaf Springs
  • Springs
  • Double Eye Springs
  • 23-1/8 Inch Long
  • 3500 lbs
  • Universal Group
Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 3,500-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushings with 9/16" inner diameter. Lowest Prices for the best trailer leaf spring suspension from Universal Group. 3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 23-1/8" Long part number SP-216275 can be ordered online at etrailer.com or call 800-298-8924 for expert service.


  • All Info
  • Reviews (48)
  • Q & A (48)
  • Videos (1)
  • Photos
  • Why etrailer?

Universal Group Trailer Leaf Spring Suspension - SP-216275

Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 3,500-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushings 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 bushings included
  • Pre-mounted hangers or aftermarket hanger kit (sold separately) required for installation
    • Spring attaches to hanger mounted on trailer frame at one end
    • Other end connects to shackle straps suspended from hanger or equalizer


Specs:

  • Quantity: 1 leaf spring
  • Spring capacity: 1,750 lbs
  • Axle capacity: 3,500 lbs
  • Length from center of spring eye to center of spring eye: 23-1/8"
  • Spring width: 1-3/4"
  • Eye diameter with bushing: 9/16"
    • Eye diameter without bushing: 11/16"
  • Leaf thickness: 3/8"
  • Number of leaves: 3
  • Additional dimensions: see table


Double-Eye Spring

Part NumberABCD
SP-21627511-9/16"12-7/16"23-1/8"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.


Double-eye leaf springs attach to hangers that are welded onto your trailer. One end of this spring will attach directly to the hanger with a suspension bolt. The other end will attach to shackle straps that are suspended from a hanger. These straps allow the spring to move and pivot so that it can better compensate for uneven pavement. If you have a tandem- or triple-axle trailer, the shackle straps will be attached to the equalizer that connects multiple springs.


To mount this spring, you will need hangers, shackle straps, and suspension bolts. If you are simply replacing a spring, you may still have hangers welded onto your trailer. You should, however, replace your shackle straps because they are usually the first component to wear out. You may choose to replace old suspension bolts as well. It is 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-216 Universal Group Double Eye Trailer Leaf Spring - 3 Leaf - 1,750-lb Capacity

Replaces 1724







Video of 3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 23-1/8" 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-216275 Review

Today we're going to be taking a look at the 3 Leaf Double Eye Spring for 3,500 pound trailer axles. Made from a durable steel construction, these are designed to flex to absorb road shock and provide a smooth ride. That's going to help reduce wear and tear on your trailer, and it's going to ensure a level ride on bumpy and uneven surfaces. This is designed to mount to the 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 does come with the nylon bushings already pre-installed here in the eyes of the spring.

This is going to have a spring capacity of 1,750 pounds. It is designed for a 3,500 pound trailer axle. A few measurements to go over with you real quick. The most important one is going to be spring length. Spring length is measured from the center of one eye to the center of the other. The spring length for this particular leaf spring, that's going measure 23 and 1/8th inches.

The spring width, outer edge to outer edge, 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 we do recommend that leaf springs should always be replaced in pairs. That's going to do it for today's look at the 3 Leaf Double Eye Spring for 3,500 pound trailer axles.


Customer Reviews

3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 23-1/8" Long - SP-216275

Average Customer Rating:  4.8 out of 5 stars   (48 Customer Reviews)

Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 3,500-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushings with 9/16" inner diameter.

- SP-216275
by:

The service was excellent and the springs were high quality. Exactly what I needed. I placed the order on Monday about 9 AM and they shipped them before noon. I received them at about 2 PM on Wednesday. Service could not have been any better. 564758



- SP-216275
by:

Fits /matches exactly what I needed from an older Tandem axle Terry 5th wheel. Hard to find, but etrailer had it no problem. 432465



- SP-216275
by:

The springs I replaced in the older 36ft fifth wheel camper we had arrived quickly and fit perfect at an excellent price. We camped the rest of the season and sold the camper to some people out of state and it pulled great with not a problem home for them as well. Will definitely be were I order my trailer parts from in the future. 539725



- SP-216275
by:

This product was just what was needed to rejuvenate my old trailer. It rides (firmly) like new again. Easy to install with the trailer on its side. 558456



- SP-216275
by:

Theses springs were exact replacements for my 20 year old Mallard that had suffered a broken spring. Tremendous value, I bought all 4 springs with replacement greasable bolts and new bushings for less than a local rv shop wanted for just one spring. My feeling was that if one spring had let go what other springs had leaf cracks as well? With this price, replacing all 4 was a no-brainer. 413103


Comments

We upgraded our camping trailer last fall so I’m no longer in a position to do a follow up review. Sorry, but the parts worked great while we owned it and gave piece of mind on the road. Thanks again for the parts and service you folks provide, you’re top notch in my opinion!

Alan W - 07/31/2018

41732

- SP-216275
by:

I haven't installed them yet because of the weather. When I do I will take pictures and add them to my review. 355333


Comments

Everything went very well. No problems encountered while installing the equipment. Installed on a 1992 Lance 5th Wheel.

Loran B - 03/18/2018

36066

- SP-216275
by:

Fast shipper. The only company i could find the right spring. Item is as advertised. Thanks for bumping us up to priority shipping. Thank You Eric 567363



- SP-216275
by:

Springs were purchased to convert a dollie to a sprung trailer. They were easy to install and looks like they'll do just fine. Delivery was right on time and all went together a-okay. Good people to do business with. 429916


Comments

Just fine - no problems.

Robert H - 09/08/2018

43347

- SP-216275
by:

These parts were for a 1977 Citation Travel trailer frame that someone had cut the springs off because the electric brake drums were to tight to roll and quite rusty so adjustment was not practical in the field.The springs and assembly pieces arrived promptly. The installation was completed in one hour. All parts fit exactly as they should. The goal is to make a storage trailer unit 8 X 18 feet. 293148



- SP-216275
by:

Worked very well on a homemade trailer I had purchased that they used a "trailer house" axle and single spring set up that was not providing any spring action at all. I should of also ordered shackle bolts with the springs. Old ones were rusted terribly and were a bear to get off. Bought new shackle bolts locally to replace. Trailer rides much more smoothly now. Thank-you. Wish I would of taken before and after pictures but I forgot to do that. I highly recommend etrailer for your selection, reasonable pricing and fast shipping. Thank-you! 488104



- SP-216275
by:

They done everything they said and it got here 2 days early extremely happy 670712



- SP-216275
by:

I bought two of these as spares for an upcoming trip to Alaska. They look like the right ones for my trailer. Unfortunately they have plastic bushings, but I ordered a set of bronze bushings from another source to replace them. It would have been more convenient for me if etrailer offered these spirngs with the bronze bushings already installed. Does anybody really use the plastic ones? 666589



- SP-216275
by:

Good product. Excellent service. Fast delivery. 666396



- SP-216275
by:

SPRINGS FIT PERFECTLY, JUST WHAT I NEEDED. EASY TO INSTALL SINCE THEY WERE THE SAME SIZE AS THE ORIGINALS. THANKS! 644883



- SP-216275
by:

They look like really solid leaf springs they got hear at a decent time. But I can't use them cause I ordered them to smale. I needed 33 1/2 not 23 1/8 and wrong size bolt eye mine was 1/2 and width was not 2 inch but I was just going to get spacers 637113



- SP-216275
by:

This spring fit under my trailer with no problem straight bolt on 610837



- SP-216275
by:

The leaf springs were great quality, especially considering our local trailer shop charges twice as much for these and only carry’s so many sizes. The customer service is phenomenal. If there is any issues they will call you and email you right away and have no issues solving any problems or concerns. 593750



- SP-216275
by:

Quick response and easy selection of correct spring set. 540439



- SP-216275
by:

Fit perfectly...delivered fast...great price 516689



- SP-216275
by:

Great value and service. Product shipped in a strong box. 510116



- SP-216275
by:

I couldn't ask for better service. From my questions answere, to website navigation to shipping correspondense...all excellent. Thank you! 498224



- SP-216275
by:

good fit overall made agood job 492229



- SP-216275
by:

Just as I ordered and great fast shippi ng 479635



- SP-216275
by:

Great products and prices. 479196



- SP-216275
by:

My springs arrived in two days, much earlier than expected. They fit great, can't wait to go fishing!!!!! 474230



- SP-216275
by:

Arrived on time in good conditions 458371



- SP-216275
by:

As always great products arrived in days not weeks keep up the good work 450417



- SP-216275
by:

The springs I ordered worked well and were delivered in a timely manner. I would order from them again if the need arises. 433026



- SP-216275
by:

Got here sooner than I expected. Packaging should of been a little better, but product was intact. Will let you know how they perform. Thank you. 432485



- SP-216275
by:

Product was shipped fast and showed up correct and on time 430661



- SP-216275
by:

easy to install and no trouble with the ride. 430308



- SP-216275
by:

I bought four of these to replace the springs on my two axle, 5000# camper. These were the closest I could find to the original length and weight rating. The springs look well made and installed with no issues. etrailer shipped them for free in just a few days. I took a short test drive and all seems ok. 429565



- SP-216275
by:

Fits excellent would recommend to others 422390



- SP-216275
by:

This product was a perfect fit and is working great. It came with everything I needed. Recommended!! 414104



- SP-216275
by:

so far working good 402981



- SP-216275
by:

Fit up perfect 395835



- SP-216275
by:

DEVERLY WAS FAST, AND INSTALLED PRODUCTS FIT GREAT , GOOD STUFF THERE GUYS 348660



- SP-216275
by:

The size and weight of the replacement springs are very nearly identical to the originals except for the bushings. I got bronze bushing to replace the cheap plastic ones. Even they have almost too much gap which means to check on them and all other moving parts during and after each trip. 333491



- SP-216275
by:

Springs are perfect, they are the exact length I needed for the suspension to work as it should. Speedy delivery so glad I found etrailer you will have all my business going foward 330282



- SP-216275
by:

Fast delivery good price smooth transac tion 325956



- SP-216275
by:

Hello, thanks for all your help, the product is very good ,and no one can compete your price your fast delivery and your courtesy thanks again...I was able to solve the problem 325623



- SP-216275
by:

Exact replacement for those used on my 23' Shadow Cruiser. Speedy delivery - you are the best. 313141



- SP-216275
by:

Fast Delivery. Easy web page. Great ser vice 311752



- SP-216275
by:

On time nice price grat service i would recommend tjis company to my friends 306314



- SP-216275
by:

spring arrived in a few days, product fit my t bucket perfectly .thank you 293733



- SP-216275
by:

Works like it should. Heck of a job on shipping etrailer.com had it to my door in 3 days 280570



- SP-216275
by:

I have yet install the product I've purchased from eTrailer, but I can say the complimentary shipping and tracking and the low priced parts has been a very pleasant experience. My order was correct once inspected upon receiving. 278973



- SP-216275
by:

just what I thought 278410


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Ask the Experts about this Universal Group Trailer Leaf Spring Suspension
Do you have a question about this Trailer Leaf Spring Suspension?


  • Replacement Suspension for Tandem Axle Trailer with 3500 Pound Axles and 24 Inch Double-Eye Springs
  • For 3500 pound axles with 24 inch springs the # SP-216275 is what you need. Springs stretch as they wear out so it's very normal for your measurement to be longer than the new springs. Also, the Tandem Axle Equalizer Kit # AP233 is also great for you. The 1/4 inch extra length isn't going to be a factor and we don't carry 5-1/2 inch equalizers that are 2 inches tall.
    view full answer...

  • Upgrading Leaf Springs on a Trailer with a 3500 Pound Axle
  • If you are wanting to go to higher capacity leaf springs I would advise against it. The problem is that since the trailer axle is rated for 3,500 pounds you won't gain any additional capacity by switching to higher capacity springs. What it will do is not allow the suspension to compress as much leading to a very stiff and jarring ride for the trailer and anything in it. Another problem is that alternate springs may not have the correct measurements and that would mean that the spring...
    view full answer...

  • Double Eye 26 inch long 3 Leaf, Leaf Spring Availability
  • The closest match that we currently have to the leaf spring that you are looking to replace is either part # SP-124275 which is rated for 2,000 lbs or part # SP-051275 which is rated for 4,000 lbs. They both are double eye leaf springs that are 26 inches long but they look like they fall outside of your weight range and they both have 4 leaf springs instead of 3. For a 2,500 lb 3-Leaf Double-Eye Spring we have part # SP-219275 which measures 25-1/8 inches on center. For a 3,500 lb...
    view full answer...

  • Replacement Leaf Spring Recommendation to Replace 20-3/8 inch Spring on 2,630 lb Axle
  • Unless you didn't need to take full advantage of the 2,630 lb axle capacity of your trailer the part # SP-169275 would not work. If your trailer would never see more than 2,000 lbs this would work well. A better option would be the part # SP-216275. This is a 3,500 lb spring and is a tiny bit shorter at 23-1/8 inch which will work great for you since springs stretch when they are old.
    view full answer...

  • Typical Hanger Spacings for Tandem Axle Trailer with 3,500 lb Axles
  • A lot of it depends on the length of the springs and equalizers that are used. When using Leaf Springs # SP-198275 with the # AP233 Equalizer Kit and the # H248 Hanger Kit, there should be 29-1/2" between the front and center hangers and 29-1/2" between the center and rear hangers. This should achieve a 4-1/2" clearance between the center of the axle and the trailer frame if you have a 3500 lb axle. I've Provided a diagram that should be helpful. I've also provided a link to our trailer...
    view full answer...

  • Hanger Spacing for 3,500 Pound Axle Leaf Spring # SP-216275 on Tandem Axle Trailer
  • I think your idea is right on the money. Take the information from the 25-1/4 inch spring hanger spacing and subtract 2 inches. The subtraction will be 1 inch from the front hanger to the center hanger and another 1 inch from the center hanger to the rear hanger. Both of those measurements should be roughly 28-1/2 inches if using hanger kit # APT3. Using u-bolts for 3 inch diameter trailer axles is not a good idea on an axle that is 2-3/4 inches in diameter. It can allow for movement...
    view full answer...

  • Selecting Replacement Trailer Leaf Springs
  • All of our trailer leaf springs are displayed on the linked page. These include both types, double-eye springs like # SP-216275 and slipper springs like # SP-264275. You can use the filters on the page to select the type you need. Springs should be selected based on the axle weight rating AND the spring dimensions, both width and length. You can refer to the linked articles for help in selecting appropriate springs for your trailer. Do note that very well-worn springs can become...
    view full answer...

  • 3,500 lb Leaf Spring Availability that is 23-1/8 inches Long
  • If you dimensions all match the part # SP-216275 except the height from the pin to the eyes is a bit less (they flatten out over time), this spring will still fit and work well. Especially if you have a load on your trailer as well. The two big things to use when picking out leaf springs is the length of the spring as well as the axle capacity. This is for a 3,500 lb axle. If that matches your trailer this is just what you need.
    view full answer...

  • Can a Curved Equalizer be Replaced with a Straight Equalizer
  • Different trailer configurations require different equalizers. It all depends on the springs, axle spacing, hanger spacing, height needed and so on. In many cases if you want to change the equalizer to something with different measurements you would also have to replace other components such as the hangers and springs in order to keep everything in the right location for that specific trailer. I have included some links to our help articles on double-eye and slipper spring trailer suspension...
    view full answer...

  • Correct Replacement Leaf Spring for 2,800-lb Dexter Axle
  • The distance between the spring eyes should be measured from the center of each eye. I've attached an image showing the correct locations to measure to obtain leaf spring measurements. However, from the given information, it sounds as though you have the correct replacement part with the 3-Leaf Double-Eye Spring # SP-216275. I've also attached an article on double-eye trailer suspension systems for you.
    view full answer...

  • Replacement Leaf Spring Options for 3,500 Pound Trailer Axles
  • To determine the correct replacement spring you will need to go by the measurements of the existing springs. This is best done with the weight off of the spring you are measuring either by removing it or by jacking up one side of the trailer. We have replacements that are rated for 3,500 pound axles. All of the springs on the trailer should be replaced at the same time so that the trailer doesn't have some good springs and some worn out ones. That could lead to poor ride quality and...
    view full answer...

  • Trailer Suspension Hanger Kit Spacing for a Tandem Axle Trailer
  • I would need to know the axle capacities to be sure but I can venture an educated guess. The only tandem axle double-eye leaf spring hanger kit we have that includes 8 inch equalizers is # APT1. With this kit, the center of the forward hanger to the center of the rear hanger would be 29-1/2 inches. It is the same from the center hanger to the rear hanger on center. That would make the center to center distance between the 2 axles 34 inches. I have included a picture showing the measurements...
    view full answer...

  • Tandem Axle Trailer Spring Hanger Kit and 6K Leaf Springs
  • The hanger kit I recommend is part # APT3HD which includes front, center and rear hangers, equalizers and bolts. This kit is good for axles up to a 7K rating and most 3-inch diameter axles are rated for 6000 to 7200-lbs. The linked video will let you see the kit contents. Please note the kit does not include parts to mount the axle to the suspension; for that use # APUBR-8, one kit per axle. For double-eye leaf springs please refer to the linked page that displays all 6K rated springs...
    view full answer...

  • Ideal Leaf Spring Hanger Spacing for Tandem Axle Trailer Using # SP-111275 6000 lb Leaf Springs
  • The spacing will depend on the axle diameter and on which particular spring hanger kit you use. If you have a 6000 lb 3 inch diameter axle, and you're using the # APT5 hanger kit which includes 7-3/4 inch equalizers and 2-5/8 inch shackle straps (which are the correct size for dual axle trailers, 3-1/8 inch shackles are usually used on single axle trailers) , the center to center distance between the front and center and center and rear hanger is 29-1/2 inches. The center to center axle...
    view full answer...

  • Trailer Suspension Parts Needed to Increase Trailer Capacity from 7000 to 10000 lbs Gross Weight
  • Your best bet for upgrading the suspension on your trailer with 5,000 lb axles is to change out the springs from 1,750 lb capacity each to at least 2500 lb capacity each. Helper springs would not increase the capacity of your original suspension, they are designed to help your suspension handle loads up to the rated capacity of the suspension. If your trailer suspension is built with double eye springs you will need to measure the springs with no load on them from the spring eye center...
    view full answer...

  • How to Get Correct Length Measurement of Trailer Leaf Springs
  • I'm assuming that you're wondering how much the leaf springs flatten out over time. Usually it won't vary by more than 1/2 inch or so, but there's a sure way to get an accurate measurement. The best way to get an accurate length measurement for a leaf spring is to jack the trailer up so that the axle is hanging free. You can then get a center eye to center eye distance that'll be right on the money. By letting the axle hang, you'll be able to get a correct measurement.
    view full answer...

  • Troubleshooting Reduced Fender Clearance After Replacing Leaf Springs
  • It's certainly possible that you have two identically rated and sized leaf spring sets on your trailer that feature a different amount of leaves. Most likely at one point only one side of the trailer leaf springs was replaced, while the other remained installed. We do recommend replacing both sides of the leaf spring sets on an axle at the same time. As long as you get the needed capacity and length, there is not really an advantage with going to a set that features more leaves. The additional...
    view full answer...

  • Replacement Double-Eye Leaf Springs for Tandem Axle Boat Trailer
  • We can help you with new double-eye leaf springs for your boat trailer with 3500-lb tandem-axles. Usually axles will have a plate or sticker that tells you their weight rating. Old, worn springs tend to stretch. If you remove one of your leaf springs and measure its eye-to-eye dimension it is entirely possible that it will now measure longer than it was when installed. If the spring is still installed in the suspension it is hard to get an accurate measurement unless you jack up one...
    view full answer...

  • Broken Leaf Spring Replacement Recommendation for 23-1/8 inch 2,500 lb Axle Springs
  • If you don't want to move your current hangers we have a 3,500 lb axle leaf spring part # SP-216275 which would fit and would work well. The ride might be a bit stiffer but it would still work well. The 2,500 lb axle springs we have are longer like the # SP-219275 which is 25-1/8 inches long and would require moving you hangers. You'll want to replace the springs as a pair for the axle. Since the springs would be different rating you'll want to replace all of them so they all match.
    view full answer...

  • What is Recommended Clearance between Trailer Axle and Frame
  • The recommended clearance with leaf spring suspension on an unloaded trailer is between 2 - 2-1/2 inches. You should have sufficient clearance with your loaded trailer, as leaf springs only tend to deflect 1-1/2 inch when carrying a load.
    view full answer...

  • How to Determine Hanger and Axle Spacing Building a Trailer with 26 Inch Long Double-Eye Springs
  • On a spring that is 26 inches eye to eye on center and a single axle trailer you will want the hangers to be up to 1/2 inch less than the spring length so 25-1/2 inches on center between the front and rear hangers. For the ideal axle position you can follow the formula in the picture I have included. It covers single or tandem axle set ups.
    view full answer...

  • Leaf Spring Recommendation for 3,000 lb Axle on Cikira Travel Trailer
  • The closest leaf spring option we have would be the spring part # SP-216275 which is a 3,500 lb axle leaf spring that is 23-1/8 inches long. You'll have to move you suspension hangers to accomodate the longer springs but this will work well for you.
    view full answer...

  • Axle and Suspension Hanger Placement on Tandem Axle Trailer
  • The placement of the axles is going to depend on the gross trailer weight. I have included a picture that shows how to determine where the center point should be between the axles. Placement of the hangers is going to require mocking up the hangers to determine where they are going to fit. But as a guide you can use the following as a starting point: Distance between front and center hangers and between center and rear hangers, approximately 29-1/2 inches (74.93 centimeters).
    view full answer...

  • Replacement Double Eye Leaf Springs For Older Snowmobile Trailer
  • I have a solution for you, but we do not carry any leaf springs that are 1-1/4 inches wide. It is possible that the springs are specific to the trailer manufacturer or came from a specific application. Based on the dimensions you provided, the closest match we have is the 3-Leaf Double-Eye Spring # SP-216275. This leaf spring measures 23-1/8 inches from center of eye to center of eye. This spring is 1-3/4 inches wide. If you do not have room to add a wider spring to your spring...
    view full answer...

  • Replacing a Broken Leaf Spring on a 2007 Starcraft 2406 Pop Up Trailer
  • When replacing a broken leaf spring on your trailer there are a few things to note. The most important part about a leaf spring being compatible with your trailer is that it is rated for at least the same weight capacity as your trailer axle. If it is rated lower you could overload it. A higher rated leaf spring would work but it would also make your trailer suspension stiff. Other than weight capacity you simply need to make sure that it has the correct width, is the same style, and...
    view full answer...

  • Should Trailer Leaf Springs Have Higher Capacity Than Axles
  • I recommend keeping the springs rated for 7,000 pounds if your trailer's axles are rated for the same. You have to keep in mind that a portion of the trailer's weight (Likely 10 to 15 percent) is on the hitch and therefore the tow vehicle's rear axle and not on the trailer axels. If you use 9,000 pound springs and overrate them you're likely to have a rough, stiff ride. Springs are rated by the axle capacity. The leaf springs for 3,500 pound axles are: # SP-216275 which are 23-1/8...
    view full answer...

  • Leaf Spring Recommendations for 3,500 lb Trailer Axles
  • Ideally you match the leaf spring's axle capacity with the axle capacity of the trailer. So since you have 3,500 lb axles you would want 3,500 lb axle leaf springs. Typically the springs are all rated for the capacity when used in a pair. We have three that will fit that capacity that are varying lengths. We have the part # SP-212275 which is 25-1/8 inches long, # SP-210275 which is 27 inches long, and # SP-216275 which is 23-1/8 inches long.
    view full answer...

  • How to Determine Correct Replacement Slipper Springs
  • What happens to slipper springs over time is they elongate and flatten, which is exactly what seems to be what happened with your springs, as opposed to the wrong length being put on (that is, of course, possible, but less likely). You can replace your springs but there are a few things you need to know, starting with the weight rating of the axle; from there you need the length of the center eye to the end of the spring while taking into account the fact your springs have elongated....
    view full answer...

  • Recommended 3500 lb Replacement Axle, Leaf Springs, And Hardware For Pop-Up Camper
  • For your pop up camper, I recommend the Dexter Trailer Axle w/ Electric Brakes - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 89" - 3,500 lbs # 35545E-ST-EZ-89. You will want to measure to ensure that this is the correct fit with the leaf springs at 74 inches from spring center to spring center. This axle has the brake assemblies and hub and drum assemblies already fitted, so you will just need to assemble and install. For leaf springs, you will want to measure from center of spring eye to...
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Info for this part was:

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

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