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Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 7/8" Rear

Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 7/8" Rear

Item # APS1
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Our Price: $39.37
Trailer Leaf Spring Suspension
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Shipping Weight: 6 lbs
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Trailer Leaf Spring Suspension APS1 - Hangers,Suspension Kits - Redline
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Kit includes 1-1/2" tall front hangers, 7/8" tall rear hangers, 3-1/8" shackle straps and hardware for mounting springs to your 2,000-lb to 7,000-lb, single-axle trailer frame. Components for mounting axle to springs sold separately. Lowest Prices for the best trailer leaf spring suspension from Redline. Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 7/8" Rear part number APS1 can be ordered online at or call 1-800-496-5010 for expert service.
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  • Reviews (122)
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Redline Trailer Leaf Spring Suspension - APS1

  • Hangers
  • Suspension Kits
  • Spring Mounting Hardware
  • Double Eye Springs
  • Single Axle
  • Redline

Kit includes 1-1/2" tall front hangers, 7/8" tall rear hangers, 3-1/8" shackle straps and hardware for mounting springs to your 2,000-lb to 7,000-lb, single-axle trailer frame. Components for mounting axle to springs sold separately.


  • Attaches 2 leaf springs (sold separately) to your trailer frame
    • Use table below to determine hanger location based on type of leaf springs
  • Achieves 4-1/4" or 4-1/2" clearance between trailer frame and axle, depending on axle size
  • Includes:
    • (2) 1-1/2" Tall front hangers (115917)
    • (2) 7/8" Tall rear hangers with steel bushings (30-20)
    • (4) 3-1/8" Long shackle straps (115208)
    • (6) 3" Long x 9/16" diameter shackle bolts (9163B)
    • (6) 9/16" Diameter locknuts (916DLN)
  • Designed for use on trailers with single, 2,000-lb to 7,000-lb axles
  • Does not include components for mounting axle to springs

Hanger Locations for Single Axle

Leaf SpringsA - Distance Between HangersB - Distance Between Center of Axle and Trailer FrameAxle Diameter
SP-169275 (1020)20"4-1/2"1-3/4"
(typical 2,000-lb trailer axle)
SP-219275 (PR722)
SP-220275 (PR3)
SP-218275 (PR4)
SP-212275 (PR4B)
SP-111275 (PR5)
SP-198275 (PR6)
(typical 3,500-lb trailer axle)

Note: The above table provides an indication of where the included hangers can be mounted on your trailer. The distance between the hangers may vary depending on your specific application. Be sure to verify proper positioning before welding.

APS1 Single Axle Hanger Kit - 1.75" Double Eye Springs - 2,000 lbs to 7,000 lbs

Customer Reviews

Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 7/8" Rear - APS1

Average Customer Rating:  4.9 out of 5 stars   (122 Customer Reviews)

Kit includes 1-1/2" tall front hangers, 7/8" tall rear hangers, 3-1/8" shackle straps and hardware for mounting springs to your 2,000-lb to 7,000-lb, single-axle trailer frame. Components for mounting axle to springs sold separately.


Exactly what was needed for the build


This is a great kit! It included everything we needed to replace the old, worn-out brackets on our 6'x10' trailer. The directions were helpful and the brackets and hardware are nice and solid. We've had zero issues with the leaf springs (purchased on, also) or the brackets. Would definitely recommend!


Excellent, had everything I needed and more for my trailer. Everything fit well!


All the parts have great quality. Haven't gotten to building the trailer as yet!

They are working perfectly!
Kenneth - 05/11/2021


I ordered replacement leaf springs for my trailer using the instructions provided by etrailer. The correct items were shipped and they fit perfectly! The mounting hardware was exactly what was needed. No extra parts were needed as in run to the local hardware store! The springs went in with no problems.
I would absolutely buy from etrailer again as their customer service was excellent as was the products.


Sometimes on older trailers the leaf spring bushings will wear out and the mounting bolts will get wear grooves in them. Its cheap to replace everything play it safe.

Everything fit perfectly.


I have purchased several items from etrailer and have always been very satisfied with there parts and there service. I have never had the pleasure of talking with any of there reps,because they do such a great job of describing their parts with videos and knowledgeable people it makes the job easy. When you live in a small town you can't just go down town and buy a new set of spring hangers or a new spring, but with the push of a button you can usually find what you need and it is priced fairly.I am a very satisfied customer. keep up the goog work etrailor


After purchasing an order of springs, shackle kit, U-bolts, bearing kit and a new Pro jack for a trailer repair I discovered a week delay in shipping due to one of the items on back order. (Email the day after I ordered informing me of the delay) A call to Angie K. On that Sunday!!!! And she had an in stock item to replace it and had my order on its way Monday morning , Thank You Angie everything sent was what I ordered and correct. Communication was great and they did what they said they would, Good prices and free shipping on my orderThanks again


I bought a axle, springs wheels, hubs etc. to build a utility trailer, I inadvertently had ordered incompatible hubs for the selected axle the person filling the order noticed this and contacted customer service to alert them of the issue who then called me to correct the problem. This saved me the time and expense of returning the part and delaying the project. great service, attentive, knowledgeable employees and great products.
Thanks E trailer.


I haved purchased numerous products from etrailer, no disappointments ever
This company delivers at a 5 star rating

Its been a year and the parts are working great
Alex - 03/25/2017


Wow, the shackle plates were long, but everything is quality materials. The nuts are locking and bolts are hard. Nuts threaded on without and problems. took a bit till I figured out the after shackle hanger where it said Up was to be against frame before welding. Welded on with easy,no penetration problem what so ever


Items were shipped quickly. All parts were clean ready to weld in place. While my project may have a long way to go, the installation of the springs was quick and easy with springs and the mounting kit from etrailer.


The parts I thoug call with hardware kit was thing didn't need we're ther the parts I thoug came with kit not ther had buy eels We r u bolts were not in kit the main thing I thoug wood be in kit thanks

Phil, thanks for your business and your review. Since the required U-bolt lengths and diameters vary from axle to axle, the mounting components are sold separately. The U-bolt kits may be found at this link:
-- Etrailer Expert Laura E - 12/01/2017


Great prices, fast shipping, and great customer communication! Just received my order, and getting ready for install. Would definitely order from etrailer again!

Thanks for following up. I used your product on a motorcycle trailer I was building for a trip I made last year. Im extremely impressed with the quality of your product, and also the affordable pricing! I had two Harleys on the trailer with a total worth of about $65,000 and we hauled them from Nevada to Ohio and back with zero issues and your product performed flawlessly. Thanks so much again
Jason M - 06/18/2016


Fast shipping. Great customer service. Also bought left springs to go with. Worked great on my small boat trailer.

1year and still doing great. Thanks
James G - 02/11/2017


I haven't installed this yet but it is just what I needed and expected. My old boat trailer need new everything so this does it for me, just some time to weld it on.


These spring hangers worked great. My boat is back on the road!
Joe W - 10/15/2016


This product was a very good buy for the project, It saved me time and money by using your product rather than making my own which would not have been as good as the ones I bought from you. I will also be buying other parts from you in the future. I think you have a great company with great prices. Thanks,


Parts are exceptional quality. Shipping very fast. I will continue to choose for my purchases, as the quality and price are far better than locally available.


I'm building a new trailer and offers a great well defined selection of items with helpful tips and videos to complete my projects correctly the first time. The hanger kit worked out great without any issues.

Thanks, Gary K.


As I have come to expect E Trailer has delivered on time and in good condition. The leaf spring mounts fits perfectly and my trailer is on the road again.


Excellent products, very Happy. I spent a lot of time searching the internet for these products. Pricing, quality and delivery were great ! I made the right choice to order from


I used these to install new springs on my trailer. For the price, it was easier than ordering all the parts separate. They are not galvanized so I painted the parts. Parts all came very quickly.


I have not welded them unto the trailer as yet, but the parts seem to be of high quality.

Everything seems to be working fine. I have had no problems with the parts.
Van V - 07/10/2016


I used these hangers to weld up a new adjustable spring & axle carrier with new springs on a small boat trailer. Great quality, low price and fast shipping. Bravo e Trailer.


I am building a new trailer using an axle from my old trailer, this kit fit my needs and price point. Shipping was right on time, not that I was in a hurry.
Thank you etrailer!

Show More Reviews

See what our Experts say about this Redline Trailer Leaf Spring Suspension

  • How Tight Should Suspension Shackle Bolts Be Torqued
    The shackle bolts used between the springs and hangers do not require a specific torque rating because tightening the shackle bolts too much will squeeze the shackle straps against the leaf springs, and the whole suspension system will bind and cause problems. The best thing to do when tightening down shackle bolts is to use lock nuts, tighten them until they are snug, then back them off 1/4 turn. The lock nuts of the part # APS1 will keep them from backing off.
    view full answer...
  • Can Hangers of Single-Axle Trailer Hanger Kit # APS1 Attach to 2 inch Trailer Frame
    The width of the hangers that come with the # APS1 is 2-1/8 inches. These would easily be able to attach to the bottom of a 2 inch wide trailer frame.
    view full answer...
  • Overall Dimensions of the Hangers in Single-Axle Trailer Hanger Kit APS1
    I went out to the warehouse and pulled hanger kit # APS1 to measure the hangers for you. The larger hangers measure 3 inches long, 2-5/16 inches wide, and 2-1/8 inches tall overall. The smaller hangers are 2-1/8 inches long, 1-13/16 inches wide, and 1-1/2 inches tall overall. On the smaller hanger the shackle straps attach to the outsides of the hangers.
    view full answer...
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  • Can a Tandem Axle Trailer go to a Single Axle
    If you are absolutely sure you wouldn't exceed the capacity of the one axle on your trailer you could get by with just one axle. You are going to have to move the good axle to where the center equalizer is currently at to ensure you get proper axle placement which ensures that your trailer tongue weight will be in the 10 to 15 percent of the total trailer weight range so that you don't have sway. For a single axle hanger kit you would need the part # APS1.
    view full answer...
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  • Do Shackle Straps in Trailer Hanger Kit # APS1 Bolt to the Inside or Outside of Hanger
    The shackle straps included in the # APS1 trailer hanger kit will bolt to the outside of the rear hangers, which measure 9/16 of an inch from the top to the center of the bolt hole. I am including some links to videos and FAQs with information that should be helpful as you go through the suspension kit installation.
    view full answer...
  • Can Trailer Suspension Hangers Be Bolted on
    You will want to weld the hangers of the Single-Axle Trailer Hanger Kit # APS1. The holes you see are not designed to have bolts run through them. If you did run bolts they would most likely interfere with the spring and how it would sit on the hanger. I would recommend you have a qualified welder do this for you. Check out the FAQ on trailer suspension I attached also.
    view full answer...
  • Can a Rear Hanger that is Wider than the Trailer Frame be Still be Used
    The reason that the hanger is wider is most likely because double-eye springs are 1-3/4 inches wide. But as long as the hangers you are using are welded to the bottom of the frame as much as they possibly can be it will be fine. Welding should be performed by a qualified professional welder.
    view full answer...
  • Determining Spring Hanger Spacing When Installing 4-Leaf Double-Eye Spring # PR4B
    When installing trailer suspension I recommend that you completely mock the setup to determine the best placement for the hangers. To do this I would put all of the suspension together and clamp it in place with the rear shackles at a very slight angle rearward when the trailer is lowered and wheels are on the ground. The 25-3/4" spacing measurement that you referenced from the chart is a good starting point, but due the variance in leaf springs, hangers, and shackles, it can vary where...
    view full answer...
    Image 1 for
  • Trailer Leaf Spring Hanger Spacing Measurements for Single-Axle Trailer Hanger Kit APS1
    The measurements given on the hanger kits including # APS1 are a guide only. The actual measurements will vary and to get the suspension set up correctly you would first mock up all the parts without permanently installing them. Then once the parts are in the proper positions they can be permanently installed. Basically the charts and measurements given on the hangers kits are good starting points but will not work for every situation.
    view full answer...
  • Should the Trailer Suspension Rear Hanger be Closer or Farther From the Axle than Rear Spring Eye
    The rear hanger should be slightly closer to the axle (forward) of the trailer. If you look at the drawing on the product page for Single-Axle Trailer Hanger Kit for Double-Eye Springs, # APS1, you will see the rear hanger is more forward than the center of the rear eye of the spring. The shackle, then, is at a slight angle with the top more forward than the bottom. I have included a link to our double-eye trailer suspension FAQ article that contains a lot of good information on trailer...
    view full answer...
  • Will Different Hanger Spacing For Single-Axle Trailer With Double-Eye Springs Be A Problem
    The Single-Axle Trailer Hanger Kit, Item # APS1, has recommended measurements that are meant to be guides. Actual measurements can vary depending on your situation. You may impact your tongue weight capacity with different location for the installation. If you can get your springs to fit properly then you should be fine. I am attaching an article on trailer suspensions to assist you with your project.
    view full answer...
  • Are Bushings for Trailer Suspension Spring Hangers Required
    Bushings do not always have to be used. Springs typically have bushings or they will use wet bolts depending on which part of the suspension system it is but not always. The bushings limit the wear on the suspension components. There are just different designs. Kits # APS2 and # APS5 use the same 7/8 inch hangers and it is those hangers that come with the bushings. I have included a link to our help article on double-eye trailer suspension for you.
    view full answer...
  • Recommended Shackle Straps or Hanger Kit for Single Axle Trailer
    We have some kits like the Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 7/8" Rear # APS1 and the Single-Axle Trailer Hanger Kit for Double-Eye Springs - 3-1/4" Front, 1-1/4" Rear # APS4. You are correct that that bolting to your hangers on both ends is not correct, however the size of the shackle strap needed is determined based on your hanger length as you can see in these kits. So, the Shackle Strap - 3-1/8" Long # TRSL313 may or may not be a good fit based...
    view full answer...
    Image 1 for
  • Can a Coleman Fleetwood Pop Up be Converted From Slipper Spring to Double Eye
    If you wanted to convert your slipper spring suspension to double-eye suspension you certainly could. It would be just a matter of changing springs and hangers. You would need to go with a leaf spring that is rated for the weight of your trailer when it is loaded an ready to go. I attached a page that has all of the double eye springs we offer. At the top is a chart that has all of the springs and their capacities. Select the capacity you need and then on the product page the correct...
    view full answer...
  • Leaf Spring Hanger Options for 8x8 Tilt-Bed Trailer
    For the springs, I'd recommend the # SP-169275 spring, which is designed for 2K axles and measures 20-3/8 inches from eye center to eye center. If you need a U-bolt kit for this axle, # APUBR-10 will work well. The hanger kit you use will depend on how much space you want between the axle and the trailer frame. Hanger kit # APS1 provides between 4-1/4 to 4-1/2 inches of clearance. # APS3 would give between 4 and 4-1/2 inches of clearance. # APS4 is 5 to 5-1/2 inches and # APS5 is between...
    view full answer...
  • Hanger Spacing to Use with a 24-1/4 inch Leaf Spring Light PR4B on Single Axle
    You bring up an excellent question. The distance you actually want to use with the 25-1/4 inch spring part # SP-212275 between the hangers of the # APS1 is 24-7/8 inches so that it allows the shackle to angle the proper direction.
    view full answer...
  • Can Pop Up Trailer Have Slipper Springs Replaced with Double Eye Springs
    Yes, you can go from a slipper spring suspension setup on a trailer to a double eye setup. It would be a matter of picking out the correct rated springs and then replacing the hangers and you'd be set. Since you said it's a pop up camper most likely a 2,500 lb spring like part # SP-219275 would work well for you. If you need a different spring rating let me know and I'll see what would work best. Then for a hanger kit the part # APS1 would be a great option as well.
    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 hangers,...
    view full answer...
  • Trailer Suspension Hanger Spacing When Using Spring SP-115275 on 6,000 Pound Axles
    The hanger spacing depends on the number of axles and some other factors including the hanger kit that is used. On a single axle trailer using kit # APS1 the center to center distance from the front to rear hanger is 24-7/8 inches. On a tandem axle set up the center to center distance from the front to center hanger and from the center to rear hanger is 29-1/2 inches. On a triple axle set up the distance from the front to the second hanger is 29-1/2 inches, from the second to third hangers...
    view full answer...
  • Hanger Spacing Dimension Used for Leaf Spring Part # SP-124275
    When you install the mounting kit part # APS1 on your trailer you will want to the hole centers of the brackets to be exactly 26 inches apart since you are using the leaf springs part # SP-124275.
    view full answer...
  • Leaf Spring Suspension Recommendation for 42 x 48 inch Trailer
    Basically you would need to replace the rear hanger with a double eye style hanger, use a shackle strap and then get the appropriate leaf spring. The lightest capacity spring we have is the part # SP-169275 which you referenced. For the price the best option is to just replace all of the hangers and use the kit part # APS1 which comes with everything you'd need and would work great.
    view full answer...
  • What is the Correct Distance Between the Spring Hangers When Using a SP-219275 Leaf Spring
    The distance of 25-3/4 inches would be the correct distance to have between the spring hangers. You have to consider that as the the leaf spring compresses from the weight of the trailer it will flatten out and the overall length of the spring will increase so that the shackle will face the right direction.
    view full answer...
  • Spring Hanger Spacing for the Hanger Kit # APS1 with PR4B Springs
    The recommended distance between the hangers of the # APS1 would be 25-3/4 inches when using the leaf spring # SP-212275. When the trailer is set on the ground and the leaf spring is supporting the weight of the trailer the spring will flatten out and get longer so that the shackle will face the correct way.
    view full answer...
    Image 1 for
  • Does 3-Leaf Double-Eye Spring SP-169275 Include Mounting Hardware
    The 3-Leaf Double-Eye Spring # SP-169275 is sold individually and comes with bushings for its two eyes. It does NOT include the required shackle straps, shackle bolts, nuts or spring hangers needed for installation. However, we do offer each of these items. The link included will show you all trailer suspension parts for double-eye springs. Just click on the number of axles you have to see suitable kits. For example, for a single axle kit we offer parts such as Redline # APS1 that includes...
    view full answer...

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