bing tracking image
  1. Trailer Leaf Springs
  2. etrailer
  3. Slipper Springs
  4. 30 Inch Long
  5. 1800 lbs
  6. 2 Leaf
2-Leaf Slipper Spring w/ Flat End for 1,800-lb Trailer Axles - 30" Long
etrailer

2-Leaf Slipper Spring w/ Flat End for 1,800-lb Trailer Axles - 30" Long

Part Number: e29SR
In Stock
$45.99
Trailer Leaf Springs
Add to cart
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos

Need help with installation?
Locate installers near me
Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 1,800-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 etrailer. 2-Leaf Slipper Spring w/ Flat End for 1,800-lb Trailer Axles - 30" Long part number e29SR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (42)
  • Q & A (0)
  • Photos

etrailer Trailer Leaf Springs - e29SR

  • Slipper Springs
  • 30 Inch Long
  • 1800 lbs
  • 2 Leaf
  • 1-3/4 Inch Wide
  • Flat End
  • Painted
  • etrailer

Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 1,800-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: 900 lbs
  • Axle capacity: 1,800 lbs
  • Length from center of spring eye to end of spring (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: 2
  • Additional dimensions: see table


Flat End Slipper Spring Diagram

Part NumberABCDE
e29SR13-3/4"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.



e29SR etrailer Slipper Trailer Leaf Spring - 2 Leaf - 900-lb Capacity

Compares to SP-038275





Customer Satisfaction Score:


Customer Reviews

2-Leaf Slipper Spring w/ Flat End for 1,800-lb Trailer Axles - 30" Long - e29SR

Average Customer Rating:  4.6 out of 5 stars   (42 Customer Reviews)

Slipper leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 1,800-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushing with 9/16" inner diameter.

by:

waited a couple days just to receive the wrong size. broken one on bottom wrong leaf spring above.

Etrailer Expert

Katrina D.

7/16/2024

Oh I am sorry to hear that. Lets get the correct one sent out to you right away.



by:

I have a decades old boat trailer. Finding replacement parts isn’t exactly easy. These leaf springs fit perfectly and I have had no issues with them at all.



by:

Item was very misleading. Promoted as a double spring, unfortunately only one delivered, maybe my fault. Spoke to customer service and poor customer service. Never use agin just for that reason.



by:

Exactly what I needed and ordered. Great value considering the cost and timely delivery!



by:

Fit perfectly



by:

Parts look good. I will know more when I get them installed.



by:

On time . Good service



by:

Arrived as promised. Install video was helpful. Changed out two leaf springs in about two hours.



by:

It was just exactly what it said fits perfectly and saved me a lot of money. Easy to install!



by:

Easy to use website, products readily available and searchable. Speedy delivery, correct fitment, product as described. Pleasure doing business with professionals who know their field. Thanks Etrailer! -Chris; Jefferson, Maine



by:

This is exactly what I needed. My order arrived sooner than expected.



by:

I actually ordered the wrong length spring but I was able to move the hanger and everything worked out great.



by:

No issues.
Would recommend to others.



by:

Excellent, had to make a return and Melissa was super helpful in finding a proper replacement.



by:

Right part. First time. Fast delivery.



by:

It was just as I ordered.



by:

It was exactly what I needed and fit great. Arrived sooner than expected!



by:

Order came right in with exactly what it said I bought, reasonable prices and everything came early. Very happy with their service, will recommend to others.



by:

springs installed with no problems.



by:

good quality products. Great Service.



by:



by:



by:

Excellent product. Fast shipping.



by:

quick service



by:


25
42
Show More Reviews

See what our Experts say about this etrailer Trailer Leaf Springs

  • Replacement Suspension For a Old Trailer With 32-1/4" Slipper Springs and 1-3/4" Axles
    The longest 1-3/4" wide slipper spring we carry is 30" from the center eye hole to end of the flat slipper end. We have springs for 1,800lb # e29SR, 2,900lb # e49SR and 3,700lb # e89SR axles. With your axle diameter being 1-3/4" in diameter it likely is only a 2,000lb axle. All the springs above have a 15" length from center of eye to center of spring pack along the curve. The center of spring to end of spring along the curve is only 17-3/4". If this will not fit your application you...
    view full answer...
  • How to Measure for Replacement Slipper Spring on a Cox Tent Trailer
    A similar leaf spring that we have is the Universal Group 2-Leaf Slipper Spring # e29SR which is 30" long and rated for a 1,800 lb axle. The 30" is measured from the center of the eye to the end of the leaf spring (see attached picture). The spring is 1-3/4" wide and has an eye diameter of 9/16" with the bushing. Let me know if this doesn't fit your specs and I can see if we have something else for you.
    view full answer...
    Image 1 for
  • Availability of Trailer Replacement Leaf Spring that is 30 inches Long for 1,800 lb Axle
    The best matching option we have is the part # e29SR which is for an 1,800 lb trailer axle and is overall 30 inches long.
    view full answer...
  • Replacement Slipper Spring Recommendation to Replace 31 inch Long Spring
    For a slipper spring that would work well for your application you would want the part # e29SR. This is a 2k rated spring that is 30-1/4 inches long. This should be a much softer spring than what you have as it looks like your spring would be a higher capacity than this one.
    view full answer...
    Image 1 for
  • Are Radius End And Flat End Slipper Springs For A Trailer Interchangeable?
    The only difference between the Flat and Radius end slipper springs is the shape of the end of the spring with the radius having an arch and the flat being flat as you can see in the included pictures of the Radius End # SP-179275 and Flat End # e29SR. The springs are interchangeable but you will want to make sure that the length from the center of the spring eye to the end of the spring is the same, and make sure the spring matches the axle rating of the axle on your trailer.
    view full answer...
    Image 1 for Image 2 for
  • Can Slipper Spring # e29SR Install Below Trailer Axle
    Yes the slipper spring part # e29SR that you referenced can install below the trailer axle. I attached a picture that shows it installed in this orientation.
    view full answer...
    Image 1 for
  • Replacement Trailer Suspension Components
    In a typical leaf spring trailer suspension a spring seat like # TRSS300 is welded to the axle but the u-bolt plate is not. The u-bolt plates are bolted around the axle and leaf spring and these hold the spring in place on the spring seat and to the axle, as noted on your photo. You can also refer to the linked article on slipper spring suspensions for more on the details of how these parts work together and on how to measure. You'll want to completely remove one spring from the suspension...
    view full answer...
    Image 1 for
  • 30 inch Long Slipper Spring Recommendation for Boat Trailer
    We have a few options for 30 inch long slipper spring that is 1-3/4 inches wide. For a 3,700 lb axle option we have the part # SP-040275. For a 2,900 lb axle option we have the part # SP-039275. For an 1,800 lb axle you would want the part # e29SR.
    view full answer...
    Image 1 for
  • Replacement 30 inch Slipper Spring for PWC Trailer with 1,550 GVWR
    For a 30 inch slipper spring replacement for a PWC trailer that has a GVWR of 1,550 lbs the best option is the part # e29SR which is 30 inches long and is rated for up to an 1,800 lb trailer axle.
    view full answer...
  • How to Find Replacement Slipper Spring for Jet Ski Trailer
    The length of the slipper spring is from the center of the eye to the end of the slipper. See the attached diagram below. The width and the capacity are also necessary when choosing a replacement, leaf count isn't very important and can vary. The capacity will be based on your axle. For example, if you have a 30" long slipper spring that is 1-3/4" wide and a 1,800 lb axle you could use the # e29SR. I have attached a link to all of our slipper springs along with a helpful article on slipper...
    view full answer...
    Image 1 for
  • Where is 30 Inch Measurement Taken on Slipper Spring # e29SR
    2-Leaf Slipper Spring # e29SR measures 30 inches from the center of the eye to the very end of the spring. I included a picture showing some measurements for this spring: A is 13-3/4 inches B is 30 inches C is 15 inches D is 17-3/4 inches E us 4-7/8 inches It depends on the design of the slipper spring by a 27 inch double eye spring would connect to the hangers at about the same locations as a 30 inch slipper springs. The two styles use different hangers though.
    view full answer...
    Image 1 for
  • Recommended Leaf Springs for 1200 lb Trailer
    For your 1200 lb trailer capacity, I recommend the 2000 lb leaf springs like # e84SR. These will have a 1000 lb capacity each. These come in different lengths, so I have attached the options for you in a link. If you have slipper springs instead of double eye springs, then the 2-Leaf Slipper Spring w/ Flat End for 1,800-lb Trailer Axles - 30" Long # e29SR are the only option we have that won't give you too rigid a ride on your trailer.
    view full answer...
  • Replacement for 31 Inch Slipper Springs on Small Trailer
    The closest leaf springs we have to what you're describing is part # e29SR. these are 30 inches from the center of the eye to the very end of the slipper end. One thing to keep in mind is your springs are going to be longer than they were when they were new because springs flatten over time. Before purchasing springs you should find out your trailer's axle capacity because the number of leaves isn't an indication of capacity. These springs are for 1,800 pound axles. Also, make sure your...
    view full answer...
  • Can the 2 Leaf Spring on my 1977 Boat Trailer be Replaced with the 3 Leaf Spring # WIF3
    Over time leaf springs will flatten making them a bit longer than their than their original length. You mentioned that the springs on your 77 boat trailer measure 31-1/2 inches so the 3-Leaf Slipper Spring, # SP-039275, measuring 30-1/4 inches would work as a replacement for your current 2 leaf springs. Part # e29SR that you mentioned is a 2 leaf spring for 2,000 pound axles. Please keep in mind that although you will be increasing the weight capacity of the springs by upgrading to the...
    view full answer...
  • Replacement Slipper Springs for 1982 Cox Boat Trailer
    Selecting new slipper springs for your 1982 Cox boat trailer's suspension means matching them up to your trailer's axle weight rating and also matching their width and length dimensions. The actual number of leaves does not always matter because different grades of steel can mean fewer or more leaves in a spring for it to reach is rated weight capacity. I think you are on target with the 1800-lbs axle rating for the spring # e29SR you referenced since your 1-1/4-inch diameter axle is not...
    view full answer...
    Image 1 for Image 2 for
  • How To Find the Correct Replacement Leaf Spring for an Old Row Boat Trailer
    In order to find out what trailer leaf spring is correct you will need to measure from the center of the eye to the end of the other side while there is no weight on the trailer. Since you have a slipper type spring you will also need to measure the width. I have attached a list of options for you once you get the above info but from the photo it looks like you have need the 2-Leaf Slipper Spring w/ Flat End part # e29SR which measures 30" long and is 1-3/4" wide. I recommend you replace...
    view full answer...
    Image 1 for
  • Replacement Slipper Style Leaf Spring for 1984 Tee Nee Trailer
    For your 1984 Tee Nee trailer, the number of leaf springs is not the determining factor but rather the length and the capacity rating. The 3-Leaf Slipper Spring w/ Flat End for 2,900-lb Trailer Axles - 30" Long # SP-039275 is a great replacement option based on your photo as long as your axle capacity is 2900 lbs because each spring is rated for 1450 lbs. If you have a 3,500 lb axle then instead you would want # SP-040275 because it is a higher weight rated spring. If the trailer axle...
    view full answer...
    Image 1 for
  • Which End Faces Forward When Installing a Slipper Spring
    When installing a slipper spring, like the 2-Leaf Slipper Spring # e29SR, you will install it so that the end with the eye is oriented towards the front of the trailer and the open end is facing the rear part of the trailer. You will need to use hangers when installing slipper springs and avoid shackle straps. Since one end of the slipper spring is open and not "fixed" it will not sit properly if shackle straps are used. I have attached a helpful article that goes into detail about what...
    view full answer...
    Image 1 for
  • Will Overrated Slipper Springs Cause Rigid Ride
    The 30" 2-Leaf Slipper Spring for 1,800-lb Trailer Axles # e29SR may well improve your ride, it just depends on what your axle is rated for and what your current springs are rated for, though it seems likely a 4-leaf spring is rated for more than you need. Ideally you are going to want your springs to be rated the same as your axle, or as close as possible without going under. The 30" # e29SR you referenced have an 1,800 lb axle capacity (900 lbs per spring), which is the lightest for...
    view full answer...
  • Picking Out Replacement Leaf Springs for 2001 Coleman Utah Pop Up
    Looks like you have slipper springs on your 2001 Coleman Utah pop up. We have replacement slipper springs available like the # e29SR which is 30 inches long and for 1,800 lb axles or the # SP-179275 which is 24-5/8 inches long and for 2,000 lb axles. These are both 1-3/4 inches wide which is the most common width for lighter duty applications like yours. If you can get me the axle capacity you need, the length of the springs, and the width I can see if we'd have a direct replacement or...
    view full answer...
    Image 1 for
  • Replacement Slipper Springs for a 2,100 lb Trailer
    The most important factor in picking out a new leaf spring for a trailer is to match the capacity needed. Going with a 3,500 lb spring for a 2,100 lb trailer is going to give you a very harsh ride. For a spring similar to the # WIG4 that is better rated for your trailer we have the # SP-039275 which is for a 3,000 lb axle or part # e29SR for a 2,000 lb axle. If you need all 2,100 lbs of your trailer's capacity you would have to go with the # SP-039275. If you have a 2 inch square axle...
    view full answer...
  • 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...
    view full answer...
  • Recommendation For Replacing Leaf Springs And Hangers
    I am glad to make a recommendation for your needs based on the pictures and information you sent. We have a few options to consider for a 30 inch long leaf spring that is 1-3/4 inches wide. For an 1,800 lb axle that has 2-Leaf Slipper Spring with flat end option, you would use Item # e29SR. For a 2,900 lb axle that has 3-Leaf Slipper Spring with flat end option, you would use Item # SP-039275. A U-Bolt Kit for a 1-1/2 inch wide square axle for 1-3/4 inch springs is Item # CE23102. A...
    view full answer...
  • Are Trailer Leaf Springs Directional, Is there a Front and Back
    Double eye leaf springs like the part # e84SR do not have a front or back designation. Slipper springs like the part # e29SR do have a front and back.
    view full answer...


< Previous
12



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 Ryan G
Installed by:
Ryan G
Employee Kevin C
Installed by:
Kevin C
Employee Jameson C
Expert Research:
Jameson C
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Manda E
Updated by:
Manda E
Employee Jonathan Y
Video by:
Jonathan Y
Employee Ethan H
Video by:
Ethan H
Employee Mike S
Written by:
Mike S

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.