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

Ask the Experts about this Redline Trailer Leaf Spring Suspension

• 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 #...
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• 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...
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• 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.
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• 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.
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• 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.
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• Leaf Springs, Hanger Kit, and U-Bolts for a 2 Inch Square Trailer Axle
  Since you do not know the capacity of the trailer axle then you can't go by the capacity of the springs. If the axle is rated for 2,000 pounds and the springs for a 3,500 pound axle then you would still be limited to 2,000 pounds. If you have the inner and outer bearing numbers then that will help to determine what the likely axle capacity is. Since you want to replace the hangers as well as the springs then it doesn't matter which springs you choose. If the axle does end up having...
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• How to Correct Trailer Whose Spring Hangers Do Not Line Up With Spring Seats
  You will need to have the spring seats removed to have them or new spring seats welded to your axle at the correct locations to match your trailer's hanger spacing. For a 3-inch round axle rated between 5200- and 7200-lbs use part # TRSS300; for a 2-3/8-inch diameter 3500-lb axle use part # TRSS238; for a 1-3/4-inch diameter 2000-lb round axle use part # TRSS175. If you cannot re-position the spring seats to match the hanger spacing then you can have a qualified welder install new material...
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• How Does the Rear Hanger Get Welded to the Trailer Frame
  On the Redline Rear Hanger, part # 30-20, which is the rear hanger included with kit # APS1, it is welded to the trailer with the side marked top, facing the outside of the trailer with the word top showing. So the U-shape part is what gets welded to the frame, on the flat part. I included a picture of the hangar that shows the top marking and how it is positioned on the trailer.
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• 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...
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• 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.
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• 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.
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• 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.
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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.
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• 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.
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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.
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• 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...
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• 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.
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• What is the Finish on The Hanger Kit # APS1
  The Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 7/8" Rear # APS1 are bare metal and have the plug weld holes to keep them in place for a solid bead on sides. The shackle straps in this kit are galvanized and the replacement is # 115208GALV. The bolts are the Shackle Bolt with Locknut for Double-Eye Springs - 3" Long just like # 166081.
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• What is the Difference Between Double Eye Leaf Springs and Slipper Leaf Springs
  The difference is found in the application. The Slipper Spring styles, like part # SP-179275, are intended for use with more heavy duty applications, while the Double Eye styles, like part # SP-124275 are used to provide a more comfortable ride. The part # SP-124275 that you referenced will be the correct fit if your current leaf springs are 26 inches long from the center of the attachments points (usually known as eye-center-to-eye-center). You might also still be needing a U-Bolt...
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• Are there Bolt-On Hangers for Trailer Leaf Spring Suspension
  We do have a couple of bolt-on spring hangers # CE14017G and # CE14016G but they are designed for slipper springs and not double-eye springs like # SP-124275. Its not likely that professional welder would charge that much. You might be able to find one locally via an iron workers union near you. For u-bolts for your 1-1/2 inch square axle you can use # SP01-120 for 2 u-bolts and 4 nuts. For a u-bolt plate you can use # 115983. For a hanger kit you could use # APS1. Now what you could...
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• 3,500 lb Axle Suspension and Leaf Spring Install Hardware Recommendation
  For a 3,500 lb capacity trailer axle with idler hubs that have a 5 on 4-1/2 inch bolt pattern you would want the part # 35545I-EZ-89. If you need brake hubs you would want the # 35545E-ST-EZ-89. These axles have a distance of 89 inches from hub face to hub face and a distance of 74 inches from spring center to spring center. For a 3,500 lb rated leaf spring you would want the # SP-212275, then for a hanger kit you would want # APS1 and then for U-bolt kit to hold the axles to the springs...
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• Hanger Spacing Dimensions for Installing Double-Eye Leaf Springs on a Trailer
  The Trailer Leaf Spring, 2250 lbs. 6 Leaf, item # SP-256275, is sold as a replacement spring for older trailers and measures 26 inches for eye to eye, center to center. If you are replacing the springs and hangers you will need to use the same center to center dimension as the original mounting brackets. These springs are designed for a 4,500 pound axle. If you are building a new trailer you will need to determine the weight capacity of the axle you will be using and order springs and...
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• What are the Proper Components Needed to Install the Leaf springs On a Trailer
  Building a single axle trailer you will need the following items to install leaf springs. I have listed the part numbers for the PR626 Springs next to the items needed. 2 Springs - # SP-256275 2 Front Hangers - # 115917, 1-1/2 inch tall or # 28-5, 3-1/4 inches tall 2 Rear Hangers - # 30-20, with 1-1/2 inch or # 93003-3x, with 3-1/4 inch 4 Shackle Straps - # TRSL313 6 Shackle Bolts and Nuts - # 166081 These components are available in the following Kits. Single Axle Trailer...
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• 3,500 lb Axle, Leaf Spring, Wheel and Tire, Hanger Kit and U-Bolt Kit Recommendation for a Trailer
  The Dexter Trailer Axle w/ Electric Brakes # 35545E-ST-EZ-89 that you referenced is a 3,500 lb axle so you will need to use springs with the same capacity. For that I would recommend the 3-Leaf Double-Eye Spring # SP-220275 that you also referenced. For a single axle hanger kit you would want the Single-Axle Trailer Hanger Kit # APS1. For a wheel and tire combo that you could run all around your trailer you could get the Karrier ST205/75R15 Radial Trailer Tire with 15" Galvanized Wheel...
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• How To Convert A Torsion Axle To An Axle-Less Or Straight Axle System
  I do have a few options available for you however, we currently do not sell torsion axles. You have two options to consider for your trailer, the Timbren axle-less suspension and the Dexter straight axles. As you have a gross trailer weight (GTW) of 3,000 lbs. I recommend using a 3,500 lb setup. The Timbren System will provide you with a much easier method for converting from torsion springs in addition to containing fewer components. I recommend the Timbren Axle-Less Trailer Suspension...
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• 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...
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• 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.
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• Replacing Inverted Leaf Spring Suspension on Old Utility Trailer
  The first thing you will want to do is to remove the current springs from the frame and the axle. You can still use your axle if it is in good working order, but you will also want to remove any hardware welded to the axle. To install leaf springs, you will first want a hanger kit. For your single axle trailer, I recommend Redline's Single-Axle Trailer Hanger Kit for Double-Eye Springs # APS1. This hanger kit will have a 1-1/2 inch drop for the front hanger, and a 7/8 inch drop for...
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• 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...
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