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Rear Hanger for 1-3/4" Slipper Spring
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Redline

Rear Hanger for 1-3/4" Slipper Spring

Part Number: 115706S
In Stock
$6.02
Trailer Suspension Parts
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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Great Prices for the best trailer suspension parts from Redline. Rear Hanger for 1-3/4" Slipper Spring part number 115706S can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (94)
  • Q & A (0)
  • Videos (1)
  • Photos

Redline Trailer Suspension Parts - 115706S

Highlights

  • Fits 1-3/4" Wide Slipper Springs: Correct match for “WI”-series leaf springs.
  • 9/16" Spring-Eye Fit: Accepts springs with 9/16" eye I.D. for proper bolt clearance.
  • Works on Single, Tandem, or Triple Axles: Suits a range of trailer builds.
  • Mounts to Trailer Frame: Welds securely for stable rear suspension support.
  • Supports Camper, Car Hauler, and Utility Trailers: Versatile use across trailer types.
  • Rear Position Hanger: Holds the spring end firmly to keep suspension aligned.
Made in USA

Features to know about

Solid Mount for Reliable Suspension: Built for 1-3/4" Wide “WI” Series Slipper Springs

A stable rear hanger keeps the suspension working the way it should. This one is made for 1-3/4" wide “WI” series slipper springs and holds a 9/16" spring eye. It gives the slipper a firm pivot point so movement stays smooth and consistent mile after mile.

Simple, Straightforward Fit: Works on Single, Tandem, or Triple Axle Setups

Getting the right alignment is easier when the hanger fits common configurations. This rear hanger is designed for single-, tandem-, or triple-axle suspension systems using 1-3/4" wide springs. Whether you’re refreshing one axle or building a full multi-axle setup, it lines up cleanly and seats the spring where it belongs.

Proven Weld-On Design for Long-Term Strength

A hanger only performs as well as its welds. Most users weld this part to the trailer frame with the top flush for maximum surface contact and strength, leaving the open side down. That solid connection helps prevent flexing or shifting, keeping the suspension geometry true under load.

Ready for Heavy Use: Durable Hardware Connection

With a 9/16" spring eye diameter, this hanger accepts standard suspension hardware built to handle real weight. It’s made to be a lasting mount that keeps the slipper spring secure through rough roads and repeated travel without loosening or deforming over time.

Specs

Compatibility

  • Spring Width: 1-3/4"
  • Spring Type: "WI" series slipper springs
  • Spring Eye Inner Diameter: 9/16"

115706S Rear Hanger for 1-3/4" Slipper Spring





Video of Rear Hanger for 1-3/4" Slipper Spring
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for An In-Depth Look at the Rear Hanger for 1-3/4" Slipper Spring

Today we're going to be taking a look at the rear hanger for 1-3/4 inch wide slipper spring. This part includes one clip style rear hanger. It simply welds onto the frame of your trailer and holds the slipper end of a slipper spring that measures 1-3/4 of an inch wide. As you can see, it's made from a very durable steel construction. It's a weld on installation. A few measurements to go over with you real quick. Edge to edge, it's going to give us a measurement of about 2-7/16 of an inch, right in that area.

Measuring this direction, edge to edge, it's going to give us a measurement of 1 inch. Then top to bottom, it's going to have a hang down height or depth of about 1-3/16 to an inch and a quarter, right in that area. That's going to do it for today's look at the rear hanger for 1-3/4 inch wide slipper springs.

Ratings & Reviews

4.8

94 reviews
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by:

Worked as intended. Simple and inexpens ive.



by:

Product went on with very little difficulties,they look great and I like them!!a



by:

Your parts for this trailer is performing like they should,very satisfied with your
products .



by:

I couldn't believe that you had the part I needed - I couldnt fine locally - You guys made it easy ! Part shipped quick and arrived on time , perfect



by:

Perfect fit and fast service.

Rob L. profile picture

Rob L.

9/20/2021

Still working like a charm!



by:

Perfect replacement ,Great company I tell everyone about your site !!!



by:

Simple weld on rear hanger clip



by:

This rear hanger was just as they described and they shipped out quickly



by:

Items were shipped quickly, good email tracking and info.
Thank you they worked great.



by:

Received my order to day everything was shipped as promised . Your service is outstanding will plan to order again .Thanks phil



by:

Great price
Quick shipping



by:

very well made perfect replacement for my trailer.



by:

Exactly what I needed to rebuild my small utility trailer that I use to haul limbs and branches and improve its "dumpability".



by:

Works Great. Prompt shipping as always.



by:

Thought this individual part would be hard to find, not with etrailer!



by:

Love it quick shipping thanks again!



by:

The not so easy to find part was just as expected. The order was processed and received way faster than I had anticipated. Would definitely use etrailer again.



by:

Great Prices delivery was a little slow but not the fault of Etrailer they were very helpful tracking down my order



by:

I was quite pleased with my purchase ; u bolt kit ,slipper spring hangers and lug nuts ,from etrailer. The products were good quality, the shipping was very reasonable. I would buy from them again.



by:

hard to find part is exactly what I nee ded.



by:

I have purchased a number of items from etrailer.com such ans leaf springs, axle and hub assembly, and other items as well, I recently finished the trailer and it is now on a cross country trip. The trailer has just finished a 3,000 mile leg of this trip and I am told it was so smooth that it could not be felt by the towing vehicle.

Every product I have ordered from etrailer.com has been top quality and has worked extremely well. I would come back again for any of my future trailer needs.



by:

As always, etrailer came through. Exactly as ordered, fair priced and arrived sooner than estimated. Great follow-up to let me know when my package would arrive.

Oldswab profile picture

Oldswab

10/8/2023

Still working as advertised. Etrailer provides quality products that I trust. If it is important and has to work I buy from these folks.

Mike L. profile picture
Etrailer Expert

Mike L.

10/25/2023

@Oldswab Aww shucks, thanks! We're glad that you're happy with your purchase!


by:

The part was exactly what i needed Delivery was fast I definitely recommend etrailer



by:

Nice fit easy weld on instalation!
Along
with fast shipping my job was completed faster than I expected!



by:

I just received the slipper spring hanger in the mail and it was exactly the size they said it would be. Customer service was excellent. The representative was very professional and helpful enough to get the actual slipper spring hanger I was looking to purchase and measure it to confirm it was the part I needed. Will be purchasing from etrailer again.

Brink profile picture

Brink

4/30/2025

It’s always a plus to have knowledgeable employees like etrailer who provide real answers to real questions. My product is still hanging strong. Haven’t had any issues since installing the slipper spring hanger.


25
25

See what our Experts say about this Redline Trailer Suspension Parts

  • Mounting a Rear Slipper Spring Hanger
    When welding a metal part to another piece of metal, it is always best to have as much metal touching between the two parts. With this in mind, the majority of customers will weld the top of the hanger to the frame of the trailer, leaving the side with the open portion facing the ground. This will be the same for the rear slipper spring hanger, part # 115706S.
    view full answer...
  • Can Slipper Spring Replace Existing Double Eye Leaf Spring
    You could replace a double-eye leaf spring with a slipper spring like the # e33SR spring you'd looked at, but it's recommended that you remove the existing rear hanger (assuming it's a single axle trailer) with a rear hanger like # 115706S as your existing rear hanger isn't designed for use with slipper springs. You'll also want to choose a spring with sufficient capacity to handle the weight of the boat and trailer. You can choose a higher rated spring than your existing one, but be aware...
    view full answer...
  • Do Trailer Slipper Springs Normally Slip Out of their Rear Hangers
    It's hard to see in your picture but is the hanger open on the one side which allows the spring to slide out to the side? It shouldn't be open like that. If you need a replacement hanger we have the # 115706S for if you have a 1-3/4 inch wide spring. Slipper springs slipping out of their hangers is not common, even though saying that out loud and considering the name...it would seem like it would be! It would take a rather larger bump and perfect circumstances normally for a spring to...
    view full answer...
    Image 1 for
  • Troubleshooting Why Equalizer is Touching Frame on Triple Axle Trailer
    It is common to have a slight variation in the position of your equalizers but one should not be touching the trailer frame. I recommend checking to make sure that you are using the same equalizers, springs, and center hanger size in your set-up.
    view full answer...
  • Hanger Spacing Dimensions for Installing Slipper Springs on a Boat Trailer
    When determining the hanger spacing for a slipper spring you want to go with the dimensions that the hanger kit calls for. For example if you were using the slipper spring hanger kit part # APS3SE with the # SP-177275 you would want a distance of 22-11/16" inches between the hangers measured on center. This would put the hanger right at the beginning of the curve on the spring.
    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...
  • Replacement Leaf Spring for 1987 Shoreline Boat Trailer 3000 lb
    The most important thing to match when replacing trailer leaf springs is the weight capacity. Which for a trailer that weighs 3,000 lbs I'd recommend going with 3,700 lb axle springs like # SP-040275 which are 30 inches long. This means you'll need to move out your old hangers wider which we have replacements with # 115706S.
    view full answer...
  • Can Slipper Springs be Used in Place of Double-Eye Leaf Springs on a Trailer
    If the trailer currently uses double-eye spring suspension then you will want to use slipper spring hangers if you want to switch spring types. Double-eye hangers would not work in the manner you have described because the shackle bolts are not large enough in diameter. I have included a link to the slipper spring hangers that we offer.
    view full answer...
  • Does 3-Leaf Slipper Spring w/ Radius End Require a Bushing for Rear of Spring
    For the 3-Leaf Slipper Spring w/ Radius End # e99SR you only need the bushing on the one end, the other end will either sit over a bolt or will fit into a hanger like part # 115706S. If you have a double-eye spring on your trailer then you'll need something like the 25-1/8" Long 3-Leaf Double-Eye Spring # e66SR instead. Attached are some videos for you to check out as well.
    view full answer...
  • Replacement Rear Hanger for Shorelandr Boat Trailer with 1-3/4 Inch Wide Slipper Springs
    If you are looking for a weld-on option we have 1 rear slipper spring hanger that fits 1-3/4 inch wide trailer suspension slipper springs. It is # 115706S. Please note that any welding should be performed by a professional welder. For a bolt-on option we have # CE14017G. I have also included a link to our help article on slipper spring suspension for you.
    view full answer...
  • Will Slipper Spring Hanger # 115706S Work with a 2 or 3 Slipper Spring
    As long as the slipper spring you have has a width of 1-3/4 inches and the spring eye diameter is 9/16 of an inch this Rear Hanger for Slipper Spring # 115706S would work well for you. I attached an FAQ article on slipper spring trailer suspension for you to check out also.
    view full answer...
  • Hanger Bolt Recommendation for a 3-Leaf Slipper Spring # WIE3
    You need to use a 9/16 inch bolt for the front eye of the 3-Leaf Slipper Spring that your referenced part # SP-178275. For that I would recommend the Spring Eye Bolt with Lock Nut part # 166079. The correct rear hanger is part # 115706S if it's a single axle trailer. Since the spring does not have an eye on the back of it you do not need to match a 9/16 inch bolt to anything.
    view full answer...
  • Replacement Slipper Spring for Lightweight 4 x 8 Folding Trailer
    Do you know the axle capacity? It sounds like you have a lightweight utility trailer. If that's the case, we can get you very close to your original slipper springs. For a 1500 lb axle, use # SP-178275 or # SP-177275 for a 1000 lb axle. Because these springs are about an inch longer than the existing, you'll need to grind off the existing rear hanger and weld a new rear hanger like # 115706S in, about an inch reward of the old rear hanger.
    view full answer...


Info for this part was:

Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B

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