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Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 1-1/4" Rear

Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 1-1/4" Rear

Item # APS3
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Our Price: $24.70
Trailer Leaf Spring Suspension
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Shipping Weight: 7 lbs
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APS3 - Hangers,Suspension Kits etrailer Trailer Leaf Spring Suspension
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Kit includes 1-1/2" tall front hangers, 1-1/4" 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 etrailer. Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 1-1/4" Rear part number APS3 can be ordered online at or call 1-636-306-4830 for expert service.
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  • Reviews (18)
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etrailer Trailer Leaf Spring Suspension - APS3

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

Kit includes 1-1/2" tall front hangers, 1-1/4" 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" or 4-1/2" clearance between trailer frame and axle, depending on axle size
  • Includes:
    • (2) 1-1/2" Tall front hangers
    • (2) 1-1/4" Tall rear hangers
    • (4) 3-1/8" Long shackle straps
    • (6) 3" Long x 9/16" diameter shackle bolts
    • (6) 9/16" Diameter locknuts
  • 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.

TSW-S3 Single Axle Hanger Kit - 1.75" Double Eye Springs - 2,000 lbs to 7,000 lbs

Replaces APS3

Customer Reviews

Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 1-1/4" Rear - APS3

Average Customer Rating:  5.0 out of 5 stars   (18 Customer Reviews)

Kit includes 1-1/2" tall front hangers, 1-1/4" 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.


First I want to thank you for NOT sending out a review question 2 days after shipping the product !
Everything for my new springs came in a timely manner and were as advertised. I did have to call because the springs I ordered were too stiff. No problem I returned them and got the ones i should have ordered. Trailer rides much better than when it was new.


I purchased a number of products from etrailer and I am very pleased with them all. The shipper lost my axle. When I contacted etrailer customer service, they handled my problem quickly and I had a replacement axle in a couple days. Well done!

The products were all of high quality and the assemble was much easier as a result. I have attached a few pictures of the build for those interested.

Thanks etrailer for your great products and service!!

The trailer has performed better than my expectations. The products I purchased are all performing perfectly. When I build my next trailer, I will get all my assemble products from
Jim D - 01/02/2021


exactly as advertised. Welded easily. working as desired


Received package timely and was as desc ribed


I received the springs, and hardware very quickly. the quality was grate. I will be purchase all my trailer products from etrailer.


good product and fast shipping


Just what I needed


Hayley and the gang are great


They came on time and look plenty strong. I haven’t built the trailer yet but I’m sure they’ll do the job


Product was as described, great price good quality and fast shipping.



Did not need for this project. Will save for later.


Great item,have used this item before and worked great,also super fast shipping and great communication.


love the product, love the service



super fast great qualitty




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

  • Hanger Spacing for Installing 26 inch Long Leaf Springs with Hanger Kit APS3
    If you were using the hanger kit part # APS3 with a set of 26 inch long leaf springs the correct hanger spacing you'd need is 25-3/4 inches to ensure you have the correct shackle angle.
    view full answer...
  • How To Find Leaf Spring Hanger Spacing with Single-Axle Trailer Hanger Kit for 1-3/4" Slipper Spring
    I'm not sure of which exact leaf spring you have but in regards to welding the hangers to the frame, it's best to mock them up with the spring you plan to use prior to welding. This is the case for the Single-Axle Trailer Hanger Kit for 1-3/4" Slipper Springs part # APS3SE. If you want to measure you can do so from the eyelet to the center of the flat part that the keeper rides on and that will give you the approximate leaf spring hanger spacing.
    view full answer...
  • Does a Slipper Spring Suspension Use a Bushing on the Slipper End
    There is not a bushing on the hangers used on slipper spring trailers. Smaller single axle trailers will have a bolt that runs through the hanger, while some larger and tandem axle trailers will have a welded tube that the spring sits on, but there's no need to use a bushing. If you need to replace your hangers you can use something like the Tandem-Axle Trailer Hanger Kit for 2" Slipper Springs - 13-1/8" Long Equalizers # AP216-H238 for a tandem axle trailer or the Single-Axle Trailer...
    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...
  • How to Determine the Distance for Mounting Trailer Spring Hangers on a Single Axle Trailer
    Spring Hanger location dimensions are normally figured by the manufacturer and provided with the spring hanger kit, that includes all of the parts for installing the springs on the trailer frame. I have provided a chart that shows the spring hanger locations for single axle trailers for you to review, see link. There are two considerations for mounting the spring hangers. First, the distance between the spring hangers as you have asked about. Second, the location of the axle when installed...
    view full answer...
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  • Hanger Spacing Recommendation for 2,500 lb Leaf Springs on a Trailer
    When using the hanger kit part # APS3 with the leaf spring part # SP-219275 you will want to have a distance of 24-7/8 inches on center between the front and rear hanger.
    view full answer...
  • Single Axle Hanger Spacing Recommendation for a Leaf Spring # SP-212275 and Hanger Kit # APS3
    I attached the chart you referenced and it states that when you use a # SP-212275 spring with a hanger kit part # APS3 the hanger distance should be 24-7/8 inches. The length of a spring when new and not installed on a trailer will be slightly shorter than when it flattens out from the weight of the trailer. Once the weight of the trailer is on the spring it will flatten out and be the right length.
    view full answer...
    Image 1 for
  • Where Do the Hangers Need To Be When Using the Trailer Hanger Kit APS3 with a 3,500 Lb Axle
    If you are using the Single-Axle Trailer Hanger Kit part # APS3 with the 3-Leaf Double-Eye Spring part # SP-216275 then you will need to install the leaf springs hangers 22-7/8" apart. In regards to spacing front to back, I have attached a help article for you that will help with this.
    view full answer...
  • Replacing Slipper Springs With Double-Eye Springs
    There are no U-bolts to attach the slipper part, I recommend replacing your slipper springs with double eye springs. In order to do this you need to know the weight rating of your axle as well as the length from center eye to center eye so you can properly place your hangers. For example, the 4-Leaf Double-Eye Spring # SP-051275 measures 26 inches from center of spring eye to center of spring eye and has a 4,000 lb capacity; you will need to find springs that match your trailer's capacity...
    view full answer...
    Image 1 for
  • Can Boat Trailer Replace Slipper Springs With Double Eye Springs?
    Yes, you can replace your slipper springs with double eye springs. The Double-Eye Spring # SP-051275 measure 26 inches from center of spring eye to center of spring eye and would work for you; these have a 2,000 lb capacity each though you will need to find springs that match your trailer's capacity as closely as possible. The other thing you would need is a hanger kit such as # APS3, which has 1-1/2" tall front hangers, 1-1/4" tall rear hangers, and 3-1/8" shackle straps. The correct...
    view full answer...
  • Parts Needed to Add Suspension to Home Built Trailer with 3,500 Pound Axle
    On a single 3,500 pound axle trailer I recommend going with 25-1/8 inch springs part # SP-212275. You want to choose springs rated for the same capacity as the axle. Then a popular hanger kit with these springs is part # APS3. All the hardware is included with the hanger kit. I've also linked an on trailer suspension as well as one that may help you determine where to place the axle on your trailer. In addition to the suspension parts I've linked our selection of fenders. Use your...
    view full answer...
    Image 1 for
  • Replacing Slipper Springs with Double-Eye Springs
    If you are looking to replace your flat-end style slipper springs with a radius-type, you can use the same hangers you have only if they will accept the same size bolt as the radius-type springs. Otherwise you will need to get a new set of hangers and install them in place of the old ones. Also, you will want to replace the bolt as it is likely worn from the slipper spring. If you have a 2,000 lbs axle, you can use the 4-Leaf Slipper Spring with Radius End # SP-179275. This has an eye...
    view full answer...
    Image 1 for
  • Spring Hanger and Axle Diameter Measurements for Installing Leaf Springs on Single Axle Trailer
    In the attached diagram the A measurement is actually the distance from the center of the spring hangers for a single axle trailer. The spring eye to spring eye measurement for your leaf springs will be slightly different. The B measurement that you see is simply the distance between the center of the axle and trailer frame. I have attached another diagram from the Single-Axle Trailer Hanger Kit for Double-Eye Springs # APS3 product page to help demonstrate this. If you have an axle with...
    view full answer...
    Image 1 for Image 2 for
  • How to Determine the Spacing Between Axles when Building a 4-Axle Trailer
    There are several things to consider when positioning axles on a trailer. I have included a picture that will help some but other factors include the springs and other suspension components you will be using. Also, a 4-axle trailer can potentially be a little troublesome because when turning the wheels can scrub (scrape the ground sideways). The closer the axles are together within reason the less likely this is to happen. But on 4 axles I do not think you will be able to avoid it completely. If...
    view full answer...
    Image 1 for
  • Differences in the Redline Single-Axle Trailer Hanger Kits, # APS1, #APS2, and # APS3
    The APS1, APS2, and APS3 are all suspension kits for single-axle trailers with 1-3/4-inch double-eye springs. They are designed for use on trailers with single, 2,000-lb to 7,000-lb axles. The difference in the kits are in the rear hangers and the shackle straps. The Redline Single-Axle Trailer Hanger Kit, part # APS1, uses the Redline Rear Hanger, part # 30-20, which uses a steel bushing and is .91 inches tall. The shackle straps are the Shackle Strap, part # TRSL313, which are 3-1/8...
    view full answer...
  • Single Axle Hanger Kit Recommendation for Use with Slipper Spring SP-264275
    For a single axle slipper spring hanger kit to be used with the slipper spring part # SP-264275 you'd want to use the part # APS3SE.
    view full answer...
  • Can Leaf Springs with a Lower Weight Rating Be Used to Ease Ride of PWC Trailer
    You can use springs with a lower capacity than your existing springs to help provide an easier ride for your PWC. The # SP-178275 springs are a great choice. It is important to keep in mind that going with a lower weight rated spring will reduce the weight capacity of your trailer. When choosing a lower weight rated spring, you will want to ensure that you still have enough room in the weight capacity to carry your PWC, the weight of the trailer, as well as any additional components on...
    view full answer...
    Image 1 for
  • Slipper Spring Suspension Replacement on 1991 Shorelander
    A bushing isn't required for slipper springs, but if your bolt has one it would reside in the "C" pocket at the end of the spring. The one thing that would worry me is that extra drilled hole on that hanger being too close to the original one and the strength of the hanger being compromised. There are hangers that have two holes in them so you can use either height setting, but they come from the factory that way-these are either drilled after the fact or very worn and it wouldn't be a...
    view full answer...
  • Slipper Spring Recommendation for 1985 Starcraft Jon Boat Trailer
    For a slipper spring the part # SP-177275 would be your best option as this is a 1,000 lb axle spring that would work well for your 700 lb boat. Then for a hanger kit you'd want the part # APS3SE and you'd have everything needed to install.
    view full answer...
  • Hanger Kits to Use with 1-3/4 inch Wide Slipper Leaf Springs for Trailer
    For hanger kits you'd want the part # APS3SE which comes with everything needed to mount the leaf springs # SP-264275. We don't have equalizers that fit 1-3/4 inch wide springs so you'd not use them.
    view full answer...
  • 1,000 lb Slipper Spring Recommendation for John Boat Trailer
    The lowest rated trailer leaf springs we offer are for 1,000 lb axles like the slipper spring part # SP-177275. This might be a little stiff for your boat but would still work great. This is a very common spring for smaller boat trailers like your so it would be a great solution. If you needed a hanger kit you'd then want the part # APS3SE and you'd be set.
    view full answer...
  • Replacement Slipper Spring for 1973 Tennessee Boat Trailer
    The closest option we have is the 1,000 axle slipper spring part # SP-178275 which is a couple inches longer than what you need as it measures 24-5/8 inches overall and 22-3/4 inches from center of bolt hole to where it attaches to suspension hanger. So the best solution I can make is to move back your rear hanger or go with a new hanger kit part # APS3SE set at the correct dimensions and you'd be set.
    view full answer...
  • Comparing the Single-Axle Trailer Hanger Kits for Double-Eye Springs APS1, APS2, and APS3
    When choosing between the Single-Axle Trailer Hanger Kit for Double-Eye Springs part # APS1, part # APS2, and part # APS3 it will be best to use the one that has measurements that most closely resemble what is already on your trailer. For example, if your rear leaf spring hangers are 7/8" tall or shorter than you would want to use part # APS1 but if they are taller then this you would want to use part # APS2 or part # APS3. The only difference between the two latter kits is that part #...
    view full answer...
  • Can Trailer Suspension Hangers be Bolted On
    The top holes you see in trailer suspension hangers such as Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 1-1/4" Rear Item # APS3 are for button welds and not bolts so these hangers should not be bolts on. The problem is that with a weld the hanger is fixed and cannot move. With bolts no matter how tight you make them the bolt will always be smaller than the holes in the hangers and given the forces applied could cause the hangers to shift and throw off the alignment...
    view full answer...

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