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  1. Trailer Leaf Springs
  2. Universal Group
  3. Double Eye Springs
  4. 30 Inch Long
  5. 1-3/4 Inch Wide
  6. 5000 lbs
6-Leaf Double-Eye Spring for 5,000-lb Trailer Axles - 30" Long

6-Leaf Double-Eye Spring for 5,000-lb Trailer Axles - 30" Long

Retail:$140.43
Our Price: $107.52
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Trailer Leaf Springs
Shipping Weight: 24 lbs
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Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 5,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushings with 9/16" inner diameter. Great Prices for the best trailer leaf springs from Universal Group. 6-Leaf Double-Eye Spring for 5,000-lb Trailer Axles - 30" Long part number UG34FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (11)
  • Q & A (0)
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Universal Group Trailer Leaf Springs

  • Double Eye Springs
  • 30 Inch Long
  • 1-3/4 Inch Wide
  • 5000 lbs
  • 6 Leaf
  • Painted
  • Universal Group

Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 5,000-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: 2,500 lbs
  • Axle capacity: 5,000 lbs
  • Length from center of spring eye to center of spring eye (unloaded): 30"
  • Spring width: 1-3/4"
  • Eye diameter with bushing: 9/16"
    • Eye diameter without bushing: 7/8"
  • Leaf thickness: 3/8"
  • Number of leaves: 6


Double-Eye Spring

Part NumberABCD
UNA-02215"16-3/8"30"5"


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-022 Universal Group Double Eye Trailer Leaf Spring - 6 Leaf - 5,000-lb Capacity

Item # UG34FR





Customer Satisfaction Score:


Customer Reviews

6-Leaf Double-Eye Spring for 5,000-lb Trailer Axles - 30" Long - UG34FR

Average Customer Rating:  4.9 out of 5 stars   (11 Customer Reviews)

Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 5,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushings with 9/16" inner diameter.

by:

I purchased 2 of these because one of the leaf springs broke on one side of my trailer. It was a perfect fit.



by:

Awesome, broke both rear leaf springs (mono leaf ) when we pulled in to the campground. I searched for something to upgrade from the weak mono leafs . I have the wide stance axles on my camper so I needed 30 inch springs . E-Trailer was the only place that had the upgrade that could hold the weight . I ordered the springs at 4:11 pm and they shipped that same afternoon. And no not just a label created they were actually picked up by ups that same day . Once they arrived and were installed I couldn’t believe the difference they made . Now the camper rides at the correct height. E-Trailer is definitely my go to place for parts .



by:

Great product very friendly and prompt staff. The delivery system of UPS was bad took 4 days longer than expected. They had no problem getting on the phone with UPS and resolving the issue, highly recommend etrailer!!



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Quick free delivery. Part as described.



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11
11

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

  • How To Determine the Correct Replacement Trailer Leaf Springs For Your Trailer
    For new leaf springs for your 2019 Grand Design Solitude 5th Wheel you'll need to know the axle capacity and measure the leaf springs to find the correct replacement. I've attached some diagrams below for both double-eye and slipper spring style leaf springs. I'll need measurement A for both spring types. For example, If you had a 5k axle capacity and a 30" eyelet to eyelet measurement on a double-eye leaf spring then you could use part # UG34FR. If you can get me some more info on what...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • What is Difference Between 6-leaf vs 4-leaf 5,000 lb Trailer Axle Leaf Springs
    One of the biggest differences between the 6-leaf 5,000 lb trailer axle leaf spring part # UG34FR and the 4-leaf part # e44SR is the length. The 6-leaf setup is 30 inches long and the 4-leaf setup is 25-1/4 inches long. In general though the number of leaves doesn't affect ride quality or performance to a noticeable degree but when there's more leaves you end up with a taller trailer ride height if the spring is mounted above the axle.
    view full answer...
  • Determining The Correct Replacement Leaf Spring For A 2014 Keystone Cougar 5th Wheel Trailer
    There unfortunately isn't a guide to tell us what size leaf springs are used on your 2014 Keystone Cougar 5th wheel but it's very easy to determine. You'll first need to loosen the lug nuts on one of the wheels and then jack that side of the trailer up to take the weight off of the leaf springs. You can then remove the wheel and you'll need a tape measure to measure from center to center of the leaf spring eyelets. You can just measure from center to center of the bolt heads instead of...
    view full answer...
  • 5k Axle Trailer Leaf Spring Recommendation to Replace 31 inch Spring
    Yes, the 5k leaf spring part # UG34FR that is 30 inches would work to replace a worn out 31 inch spring as long as the current spring is 1-3/4 inches wide.
    view full answer...
  • Is There a Double Eye Leaf Spring That Measures 30-3/4" Long
    I do have some options for you but I just want to make sure you're measuring correct first, you should be doing so with the leaf springs unloaded and it's also important to note that leaf springs stretch over time as they wear so the new replacements are likely shorter. In regards to the number of leaves, this isn't really relevant as they can have different thicknesses which is why it's best to go off the axle capacity. That said, the only thing close we have is 30", the 6-Leaf Double-Eye...
    view full answer...
  • Availability of 30 inch Trailer Leaf Spring
    I wish we could help but we don't have any 30-1/4 inch mono leaf springs. We have a 30 inch 6 leaf spring part # UG34FR which is for a 5,000 lb axle.
    view full answer...
  • Replacement For 30 Inch Trailer Leaf Springs
    The only option we have for leaf springs that are 30 inches are the 6-Leaf Double-Eye Spring for 5,000-lb Trailer Axles - 30" Long # UG34FR. Nothing else comes particularly close in length either, as our next longest is 27 inches. These are rated for 5k axles so they will be stiffer than you need, but it's the only thing I know of in that length.
    view full answer...
  • Should Longer or Shorter Shackle Straps Be Used When Replacement Leaf Spring is Shorter
    First, make sure that this spring isn't actually the correct length. If you measured 31" on worn out leaf springs you don't need to change anything outside of replacing the leaf spring itself. If you made the # UG34FR completely flat it would be 32-3/4" long so if it was a little worn a 31" measurement would be easy to get. If your existing leaf springs were 31" when new then it is possible you will need longer shackle straps. Something like the Shackle Strap - 2-3/4" Long # TRSL275 should...
    view full answer...
  • Availability Of A 31-1/4 Long Double Eye Leaf Spring
    I am sorry but we do not carry a 31-1/4" long double eye leaf spring. The closest we have is # UG34FR which is a 30" long 6-leaf spring for a 5,000 lb axle. Leaf springs can flex up to 1" when under a load, and your springs do look a bit on the worn side. So it is possible your springs were flexed slightly when you measured. The # UG34FR may come close to fitting, but it would not be a direct replacement by any means. Unfortunately this is the longest double eye leaf spring that we carry.
    view full answer...
  • Are The 6-Leaf Double-Eye Spring for 5,000-lb Trailer Axles # UG34FR Sold Individually?
    The 6-Leaf Double-Eye Spring for 5,000-lb Trailer Axles # UG34FR is for a single spring. You will need to order a quantity of 2 to replace both springs on your single axle trailer. Each spring is rated for 2,500lbs for a total capacity of 5,000lbs for the trailer on a single axle. Be sure to check your current U-Bolts as you may need a new CE Smith U-Bolt Kit # CE23003 when you replace the leaf springs. This kit includes the u-bolts, nuts and u-bolt plates for both sides of your axle.
    view full answer...
  • Can I Use a 30 Leaf Spring to Replace a 29-1/2 Leaf Spring?
    You can use the 30" Long 6-Leaf Double-Eye Spring for 5,000-lb Trailer Axles item # UG34FR in place of a 29-1/2" leaf spring but you may need to modify your suspension or get a shorter equalizer. If you have a tandem axle trailer you should be ok but you may run into the spring hanger mount in the center. You can fix this buy getting a shorter equalizer or shackle straps. If you have a single axle trailer you will need to move your spring mounts.
    view full answer...
  • Availability of 30 Inch Eye to Eye 6 Leaf Leaf Springs
    We've just added the UNA-022 to our website using part # UG34FR. The springs have a 2500 lb capacity each or a 5000 lb per axle. The axle mounting hardware will depend on the diameter of your axle. I've linked to the U-bolt kits we offer.
    view full answer...

Do you have a question about this Trailer Leaf Spring?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Kevin C
Installed by:
Kevin C
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Wilson B
Updated by:
Wilson B
Employee Manda E
Updated by:
Manda E
Employee Mike S
Written by:
Mike S
Employee Thomas T
Video by:
Thomas T

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