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

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

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Trailer Leaf Spring Suspension
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etrailer Spring Mounting Hardware - APT8
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Leaf-spring mounting kit includes 2-1/2" tall front hangers, 4-1/4" tall center hangers, 2-1/2" tall rear hangers and necessary hardware. Equalizers are 7-3/4" long. Components for mounting axle to springs sold separately. Lowest Prices for the best trailer leaf spring suspension from etrailer. Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/2" Center part number APT8 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (42)
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  • Used (1)
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etrailer Trailer Leaf Spring Suspension

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

Leaf-spring mounting kit includes 2-1/2" tall front hangers, 4-1/4" tall center hangers, 2-1/2" tall rear hangers and necessary hardware. Equalizers are 7-3/4" long. Components for mounting axle to springs sold separately.


Features:

  • Attaches 4 leaf springs (sold separately) to your trailer frame
  • Includes:
    • (4) 2-1/2" Tall hangers
    • (2) 4-1/4" Tall hangers
    • (2) 7-3/4" Long curved equalizers
    • (8) 2-5/8" Long shackle straps
    • (14) 3" Long x 9/16" diameter shackle bolts
    • (14) 9/16" Diameter locknuts
  • Designed for use on trailers with tandem, 2,000-lb to 7,000-lb axles
  • Does not include components for mounting axle to springs


TSW-S6 Tandem Axle Hanger Kit - 1.75" Double Eye Springs - 2,000 lbs to 7,000 lbs

Replaces APT8

Item # APT8





Video of Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/2" Center

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of etrailer Trailer Leaf Spring Suspension - Spring Mounting Hardware - APT8

Hello, everybody. This is Jeff at trailer.com. Today, we're gonna take a look at the tandem axle trailer hanger kit for double-eye springs. Now, this hanger kit will allow you to attach four leaf springs to your trailer frame. Now, the leaf springs we do sell separately on our website. This kit will basically include everything laid out here on the table.

It includes all the hangers you need, the equalizers, the shackle straps, the shackle bolts, and the shackle nuts all included. Now, this is designed for use on trailers that have tandem 2,000-pound to 7,000-pound axles. And it does not include the components for mounting the axle to the springs. Now, we're gonna go through all these just to show you the size of 'em. We'll start with, let me just zoom in a little bit here and we're gonna measure 'em.

We'll start with the front and rear hangers, that'll be the smaller. There's four of those. And basically, these are 2 1/2 inches tall, and when you measure the hanger, a hanger is always measured from the top to the center of this bolt hole down here. So if we put a ruler on it from the center to the very top, it's gonna be right at 2 1/2 inches tall. And again, that's for the two front and the two rear hangers.

Now, the two taller ones, those are the center hangers that the equalizers will connect to. Those, the same way you measure from the center of this hole to the top. So if we put a ruler on it, you're gonna be right at 4 1/4 inches tall for the two center hangers. Now, the equalizers, there's two of those right here. These are curved equalizers.

And again, the length of 'em will be measured center of this hole to the center of this hole. So if we put a ruler on it, there's your 7 3/4 inches length for the curved equalizers. The shackle straps, there's eight of those. Those again, center to center on the bolt holes. So if we measure it, it's right at 2 5/8 inches long on the shackle straps. The shackle bolt comes with 14 of those. Those are gonna be three inches long and they're measured from the bottom of the head to the end of the bolt. So there's your three-inch measurement. The diameter on these bolts are 9/16 of an inch, and then it comes with the 14 9/16-size diameter lock nuts. But that should do it for the review on the tandem axle trailer hanger kit for the double-eye springs..


Customer Reviews

Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/2" Center - APT8

Average Customer Rating:  4.8 out of 5 stars   (42 Customer Reviews)

Leaf-spring mounting kit includes 2-1/2" tall front hangers, 4-1/4" tall center hangers, 2-1/2" tall rear hangers and necessary hardware. Equalizers are 7-3/4" long. Components for mounting axle to springs sold separately.

- APT8
by:

light weight junk !! says my boat trailer Mechanic. i ended up throwing the parts away and buying heavy duty parts so that my 62 year old self ain't strainded on the interstate with a busted trailer again on a Sunday where nobody is open for you to get any service to a boat trailer. a real bummer. jay d


Comments
This kit is designed for use on trailers with tandem, 2000lb to 7000lb axles. I understand if you would like something that holds a higher capacity.
-- Etrailer Expert Sierra K - 09/20/2021


- APT8
by:

Glad I chose etrailer for my purchase will definitely buy from them again, I had a old boat trailer that was given to me from a friend will convert the boat trailer into a BBQ concession trailer later with heavier axles and springs now using the axles and springs from that trailer to the new one for my UDS smokers, I have 5 of them to mount to the new one making them dedicated to that trailer.



- APT8
by:

Quick shipping and the right parts. Tha nks



- APT8
by:

As far as the kit for repairing the equalizer everything went exceptionally well.



- APT8
by:

Quick shipping and quality product.



- APT8
by:

The bolts and the nuts did not go to gather very clean and they’re also different wrench sizes, Made me think one was graded eight in the other was not They might’ve been made of different materials I’m not sure..



- APT8
by:

Purchased a trailer that looked real good, after a couple months when I was getting ready to install brakes and paint the frame, I noticed the suspension really needed rebuilt. Ordered hangers, equalizers, and new leaf springs. Everything came fairly quickly, unfortunately in transit 2 of the 4 leaf springs got lost, but were immediately shipped/replaced by the company. Great customer service, great help with anything you may have questions with. Appears to be great quality material so far. I will maintain to use etrailer for any of my trailer needs.



- APT8
by:

could not been better



- APT8
by:

I am very pleased with the Loaded backing plates, drums, bearings and tandem axle hanger kit. All appear to be better quality than what came on the trailer originally



- APT8
by:

ordered springs,hanger kit and other parts! shipping was free but opted to get 3 day instead! parts arrived following a email they were shipped the next day! I was amazed at the speed of this transaction from start to finish!!! a+ great customer service and selection of parts! thanks e-trailer staff



- APT8
by:

Excellent value. Hangers and straps are basic stamped and punched pieces, but accurate and functional. Equalizer is sturdy.



- APT8
by:

Works perfect, ivw been shopping around quite a bit and have found etrailer to be very easy to use and very quick to deliver. you have our business now, thank you.



- APT8
by:

The second delivery arrived on time and the package was intact. Thank you for standing behind your customers, I would definitely recommend you and your products to anyone.



- APT8
by:

I bought this kit to replace the equalizers and shackles on my tandem axle trailer. Buying the kit from etrailer was cheaper than buying the parts locally including shipping.



- APT8
by:

Got product in a timely manner. Also order was correct and complete. All hardware is made of quality materials.



- APT8
by:

Good to business with a company that keeps there customers informed about there order A real nice feeling for service and price I'll be back the next time I need trailer supply's



- APT8
by:

I have built numerous trailers and the price , speed on delivery, and quality from etrailer can not be beat. Very good outfit.



- APT8
by:

nice pkg. saved me money by buying pkg.



- APT8
by:

products were as expected , and prompt service . thanks .



- APT8
by:

All parts were delivered quickly and were just what I needed. All on trailer and just as described.



- APT8
by:

Got the product quickly and was exactly what was ordered. Good follow up and notification on product shipment.



- APT8
by:

Anytime that you want to get great service and excellent quality parts...........................this is where you will find it.



- APT8
by:

No issue with this product. Will purchase again



- APT8
by:

Great ordering process, timely and accu rate!!!!



- APT8
by:

Works as designed.


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Show More Reviews

Ask the Experts about this etrailer Trailer Leaf Spring Suspension

  • Why Are Shackle Straps Hitting Frame When Re-Building Trailer Suspension
    The problem seems to be mostly that your shackle straps are hitting the frame, and the reason for this is almost certainly because the 3-1/8" Shackle Strap # TRSL313 you are using are too long. The other possibility was the hangers being too short but that is unlikely considering the lengths you gave. What I recommend is trying out the 2-5/8" shackle straps from the the # APT8 kit you have, as those are the typical length for a tandem axle trailer, while 2-1/4" straps such as # TRSL225...
    view full answer...
  • What Are The Two Upper Holes In Short Hangers In Tandem-Axle Trailer Hanger Kit APT8 For?
    I am happy to help! Starting with the two holes in the shorter hangers included in the Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/2" Center # APT8 you were looking at. Those holes are not for bolting but instead are for plug welding the hanger to the frame if you choose. You could also just have the hanger welded all the way around. Moving on to the equalizers. The length of the equalizer are from center of one horizontal hole to the center of the...
    view full answer...
    Image 1 for
  • How to Determine Hanger Spacing on a Tandem Axle Trailer
    It depends on the leaf springs you are using. Basically you will need to mock it all up before permanently installing anything on the trailer. Generally speaking the distance between hangers would likely be 24-3/4 inches on center to 29-1/2 inches on center but again it depends on the springs being used. These are just rough guide lines and really the only way to get the right spacing for a given trailer is to mock everything up and adjust as needed. Also, even though you asked about...
    view full answer...
    Image 1 for
  • Hanger Placement on the Tandem HAnger Kit part # APT8
    There is no definitive guide to the installation of the Tandem-Axle Trailer Hanger Kit for Double-Eye Springs part # APT8. It is designed as a universal tandem axle trailer hanger kit. It can be used in many different situations. Basics are the hangers get welded to the trailer where you will require them for you application and everything attaches to them. It depends on the leaf springs you are using. Basically you will need to mock it all up before permanently installing anything on...
    view full answer...
  • Troubleshooting Trailer Equalizer that Tilts to One Side
    Normally if the equalizer is tilted like what you have typically it's because the trailer is not sitting level. The side tilted up is typically pointed down towards the ground. It's hard to see in your picuture but it almost could be the case based on the angle of the frame and the ground in the background. Otherwise it indicates that either a leaf spring is too long or the center hanger is not properly located. I'd try measuring the distance between all of the hangers on one side of...
    view full answer...
  • Recommended Spring Hanger Kit for Load Rite Boat Trailer 3X5 Box Frame, 7200 lbs Gross Suspension
    There are a lot of variables to consider when selecting a hanger kit. First you should select a kit that will accommodate the wheel and tire combination you are using. The # APT3 kit is a good choice for smaller wheel and tire combinations like 14 inch wheel and tire combinations and the # APT5 kit would be a good choice for 15 or 16 inch wheel and tire combinations since it provides a bit more clearance for tire height. The # APT7, # APT8 and # APT9 hanger kits are typically used as...
    view full answer...
  • Dimensions of Center Hanger in Redline Tandem-Axle Trailer Hanger Kit for Double-Eye Springs APT8
    The spring hangers included in Redline kit # APT8 are intended for weld-on installation. Hanger part # E4139 that is included in the kit does have two holes that are for attachment of your springs. This part of the hanger will not be welded. I pulled one of these from our warehouse to measure its height and found the actual height to be 4-3/4-inches measured tip to tip; width is 3-inches. From the center of the 9/16-inch hole to the top edge of the hanger measures the specified 4-1/4-inches....
    view full answer...
    Image 1 for
  • Solution for Slowing Corrosion Development on Trailer Suspension Comonents
    This may seem silly but if you spray a lubricant like WD40 on the metal surfaces after cleaning them the oil will inhibit the ability of the water to contact the metal. Similar to how keeping a bike chain lubricated allows it to prevent rust development. But if you are dipping the trailer in salt water rust is basically inevitable.
    view full answer...
  • Tandem Axle Hanger Kit With 7-Inch Equalizers and 4-1/2-Inch Hangers
    We offer a Tandem-Axle Trailer Hanger Kit for Double-Eye Springs from Redline, part # APT8, that includes 7-3/4-Inch long curved equalizers and both 4-1/2-inch and 2-1/2-inch tall hangers. The shackle straps in this kit are 2-5/8-inch long measured from hole center to hole center, but we do offer longer shackle straps as separate components. For example, part # TRSL350 is a 3-1/2-inch strap (measured eye to eye) and 4-3/4-inches overall. I have included a link to our main page for trailer...
    view full answer...
  • How Tight Should Trailer Suspension Shackle Bolts Be Tightened
    We recommend that shackle bolts be tightened fully, then backed off slightly to allow free movement. For the distance between the center of the axles 30 inches is the recommended distance to use with a 26 inch long leaf spring similar to the # SP-212275. Especially if the shackle angles look good.
    view full answer...
  • Troubleshooting Trailer Shackles that Reverse on a Trailer Over Bumps
    The equalizer on your trailer suspension needs to be able to move, you might have leaf springs that are too short or your spring hangers are too far apart. Typically when people have this problem the solution is to have the spring hangers brought in closer together.
    view full answer...
  • Leaf Spring Bushings For Tandem-Axle Hanger Kit # APT8
    Our Tandem-Axle Hanger Kit, # APT8, comes with the bushings already pressed into the equalizers, but it does not include the bushings for the leaf springs. If you need bushings for your leaf springs, you will want to pickup up 8 of part # TRBU11566 for standard nylon bushings or we offer Lippert's Never Fail Bushing Set, # LC279684. This set includes 8 bushings, so you will only need to purchase a quantity of 1. The Never Fail bushings cost more, but they will perform much better...
    view full answer...
  • How Tight to Get Shackle Bolts on Trailer Suspension
    Yes when tightening the lock nuts of the shackles of the trailer suspension kits you want to tighten them down to the point that the bolt goes all the way through and the head is flush like you said. The nut only needs to be that tight as the suspension needs to be able to move without tension.
    view full answer...
  • Trailer Suspension Hanger Kit that Uses 356 Equalizer or the Individual Parts to Make a Kit
    No, none of the suspension hanger kits we have use equalizer # TREQ356. You would have to get the parts individually or get a kit with the proper sized hangers and shackle straps and just add additional equalizers. For a 2-9/16 inch hole center to center shackle strap we have # TRSL256. For bolts you can use # 126B2 for a wet bolt and nut or # 166081 for a regular bolt with nut. For the hangers though there are lots of options and I don't know exactly what you need so I have included...
    view full answer...
  • Availability of Replacement Trailer Suspension Parts in Kit Form
    The Redline Tandem-Axle Trailer Hanger Kit you referenced, part # APT8, does include the hangers as you noted. All of our kits include the hangers. If you do not want them you can order the other components as individual items. The linked page will show you all trailer suspension component parts like equalizers, bushings, shackle links, bolts, etc. and you can select only the items you need. You can use 2 of # TREQE1, 8 of # 115052 and 14 of # 166081.
    view full answer...
  • Installation of Hanger Brackets and Springs for Tandem Trailer Axles
    It is not uncommon for the trailer hangers on a tandem axle trailer to be all the same size or for there to be different sizes that can be 1-1/2 to 2 inches different in height when you compare the center hanger to the front and rear. For example, the Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/2" Center # APT8 has that 2 inch difference in size. I've attached an article on suspension to help further as well. You will want to make sure you position...
    view full answer...
    Image 1 for
  • How to Find the Correct Replacement Equalizer
    The Tandem-Axle Trailer Hanger Kit for Double Eye Springs # APT5 may have the correct equalizer but you will need to measure the current equalizer to find out. The length from the center of the left-most eye to the center of the right-most eye of your equalizer needs to be the same as the 7-3/4 inch measurement in this kit. Since you said the shackles are hitting the frame I recommend using a kit with a center hanger that is longer than the 3-3/4 inch hanger that comes with Kit # APT5....
    view full answer...
    Image 1 for
  • How to Determine Hanger Spacing on Tandem Axle Trailer
    That depends on the width of the equalizer used in the suspension setup. Let's say you were using the tandem hanger kit part # APT8 though which has a 7-1/2 inch wide equalizer though. The distance between the hangers would be 28 inches using the # SP-216275 which measures overall 23-3/8 inches. Basically with this spring you want to have 24-1/4 inches between the hangers on the outside of the setup and the bolt hole center of the equalizer side it attaches to using shackles. So roughly...
    view full answer...
  • Why is Center Hanger Longer for Tandem Axle Trailer Hanger Kit
    The center hangers in the Tandem-Axle Trailer Hanger Kit # APT8 that you recently purchased are indeed longer. This is actually pretty common for tandem axle trailers. The reason for the extra length on the middle hanger is related to the shackle straps of the equalizer. You want this hanger to be a bit longer to compensate for how the shackle straps move the spring higher up. I have attached an image to better clarify this. It is possible for the shackle to flip like you described,...
    view full answer...
    Image 1 for
  • Hanger Kit Recommendation for a 6K Axle on a Tandem Trailer
    There are two spring options that would work for you, the part # SP-115275 that you referenced or the 5 Leaf Spring part # SP-111275. The only difference is that the # SP-111275 is a multi-leaf spring with a 100 lbs more capacity than the # SP-115275. Either would work fine for you, I would go with the # SP-111275 just because of the additional capacity, and with a multi-leaf spring if a leaf fails your trailer wouldn't be completely un-usable. You would be able to limp home to fix the...
    view full answer...
    Image 1 for
  • What Are the Correct Replacement Leaf Springs for 6,000 lb Axle
    There are leaf springs available with measurements close to 25" from center of spring eye to center of spring eye, though the correct one is going to depend on your axle capacity, which should be stamped onto the axle itself. Knowing this information is going to be important to get you the correctly rated springs. The options for you are going to be 6-Leaf Double-Eye Spring # SP-222275 which is for 5,300 lb axles and is 24-7/8" from center of spring eye to center of spring eye. Please...
    view full answer...
  • How to Decide Which Tandem Axle Trailer Hanger Kit to Use
    Typically when building a tandem axle trailer I recommend using either the # APT3 or # APT5 Tandem-Axle Trailer Hanger Kit. These are the most common kits used for utility trailers and parts are readily available. The # APT5 kit is by far the most common because all the hangers are the same height and provide good tire clearance. There are a lot of variables when selecting a hanger kit. First you should select a kit that will accommodate the wheel and tire combination you are using....
    view full answer...
  • Does Trailer Suspension 7-3/4 Inch Equalizer EQ-E1 Have a Weight Capacity
    Equalizer # TREQE1 does not have a weight capacity itself. It isn't bearing much of the weight compared to other components in a trailer suspension set up. If you have a tandem axle trailer then you could potentially use kit # APT5, # APT3, # APT9, # APT8, # APT7, or # APT3HD. All of these kits have the 7-3/4 inch long equalizers. For a triple axle trailer you could use # APTT5 or # APTT3. All of the above kits also come with hangers. If you do not need hangers then you would...
    view full answer...
  • Leaf Spring, Hanger, and Axle Kit for 5,200 lb Replacement for 2013 Salem Hemisphere 300BH
    You'd need 5,300 lbs leaf springs like part # SP-222275 with an axle like the part # 8327816-EB that you mentioned. Then for a hanger kit # APT8 would work great.
    view full answer...

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Used Items Available
Used Picture for Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/2" Center
Used Picture for Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/2" Center
Used Picture for Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/2" Center
Used Picture for Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/2" Center

Condition: Rusty

Notes: rusty,install,missing one screw

Our Price: $65.45
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Info for this part was:

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