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Shackle Strap - 3-1/8" Long

Shackle Strap - 3-1/8" Long

Item # TRSL313
Our Price: $5.50
Trailer Leaf Spring Suspension
Shipping Weight: 0.27 lbs
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Shackle link helps connect double-eye leaf spring to rear hanger or equalizer on trailer suspension systems. Shackling the 2 components together allows the necessary pivot of the springs. Measures 3-1/8" from center of hole to center of hole. Great Prices for the best trailer leaf spring suspension from etrailer. Shackle Strap - 3-1/8" Long part number TRSL313 can be ordered online at or call 1-800-940-8924 for expert service.
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etrailer Trailer Leaf Spring Suspension - TRSL313

  • Shackle Links
  • Camper
  • Car Hauler
  • Utility Trailer
  • 3-1/8 Inch Long
  • etrailer

Shackle link helps connect double-eye leaf spring to rear hanger or equalizer on trailer suspension systems. Shackling the 2 components together allows the necessary pivot of the springs. Measures 3-1/8" from center of hole to center of hole.


  • Shackle link connects double-eye leaf spring to rear hanger of single-axle trailer or to equalizer of multi-axle trailer
    • Allows necessary pivot of springs for an evenly distributed load between axles and a smooth ride for trailer
  • 1 Shackle strap included


  • Length (from center of hole to center of hole): 3-1/8"
  • Overall dimensions: 4-1/2" long x 1-1/4" wide
  • Bolt hole diameter: 9/16"

TSW 5208 3-1/8" Long Shackle Link

Replaces 115208 (SL-313) 3-1/8" Long Shackle Strap

Video of Shackle Strap - 3-1/8" Long

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

Video Transcript for etrailer Shackle Strap Review

Hello neighbors, it's Brad here at etrailer, and today we're taking a look at replacement shackle straps for your trailer suspension. Most times our trailers are stored outside and they're exposed to a lot of elements. So just like any metal, it can corrode over time and you can see here's our old shackle strap. It has seen better days, and sometimes your holes can actually begin to oblong over time as the suspension moves. And unfortunately, once it starts to do that, it can get worse over time. So replacing something that connects all your suspension, these are gonna be a strong point to have your lease springs go to your equalizer.

So making sure that these are actually structurally strong are gonna make sure that your suspension is gonna be working properly and safely. So these straps have a diameter hole for the bolt of nine sixteenths. And you're gonna want to look at your old shackle straps to make sure that these are a direct replacement. And you're gonna measure the length by going from the center of the hole to the center of the hole. And these ones are gonna be three and 1/8th of an inch.

These are going to be steel construction, so they're gonna be nice and sturdy. And also when replacing anything on your suspension, this is just gonna kind of give it a fresh look. You know, if you're replacing your equalizer and you have rusty shackle straps, that doesn't really aesthetically look great, so this is gonna give it a fresh look and also be structurally strong. Now these are sold individually. So if you are replacing your tandem axle equalizer, you're gonna wanna pick up four of them.

And that was a look at replacement shackle straps for your trailer suspension..

Customer Satisfaction Score:

Customer Reviews

Shackle Strap - 3-1/8" Long - TRSL313

Average Customer Rating:  4.7 out of 5 stars   (207 Customer Reviews)

Shackle link helps connect double-eye leaf spring to rear hanger or equalizer on trailer suspension systems. Shackling the 2 components together allows the necessary pivot of the springs. Measures 3-1/8" from center of hole to center of hole.


I replaced the equalizers, shackles, bushings, bolts, and nuts on an old trailer. Everything fit properly without modification. Product quality was excellent.

Sam B.


No problems to date. A coat of primer keeps the corrosion under control.


Great straps, fit as expected. After one year, they are holding up great.


Better quality than OEM.


Quick delivery and exactly what i ordered. Thank you.


Was suppose to be delivered on Aug 2, then it said Aug 4, today is the 4th and still no part and says Aug 7th now. Thanks to the poor communication and shipping time we have to push back our vacation


Not much to say it's a shackle strap, I ordered 4 and they are as described and shipping was right on, I did however redrill them for 2" centers, I'm happy and wont hesitate to order from etrailer in the future.


Worked like they are supposed to. Held on by the bolts I purchased and leaf spring. It fixed what was broken.


The non threaded (solid) part was slightly longer than my original bolt. Bolt length is correct.
But I was able to make it work.


Perfect and on time


I am completely satisfied with service and the product that I purchased from The measurements and specifications on the web site were complete and accurate. Shipping was prompt and the parts were packed more carefully than anything that I have purchased online. Installation of my replacement leaf springs went seamlessly which I really appreciated as I had to leave my broken trailer at my hunt camp and had limited tools to do the repair.

I can't recommend highly enough. They are now my first choice in trailer parts.


the product arrived quickly and new as promised. I was so impressed with the customer service personal. I needed help with size the associate I spoke with was so knowledgeable and helpful. I would recommend this company to anyone that is looking for trailer parts. Or any other product they may carry.

Cindy C.


wonderful as it should


Perfect fit


Great product! My first purchase from etrailer but it won't be my last! etrailer seems to have everything you would need for your RV or trailer. Waited until the last minute to pick up an extra leaf spring for my trip to Alaska. Fast shipping got it here in plenty of time. Thanks!


This is a multiple product review. The long bracket are good. The shorter brackets are of the same good quality. The issue is using the short brackets with the shackles. The shorter brackets could be narrower so the shackle line up better with spring and other longer bracket. We used washers to make it align better. The greasing bolts are good, but could be longer. so we could only use 2 of the 6 and had to use normal grade 8 bolts.


Using has been a great experience. They have a huge selection of trailer parts and make it very easy to find the right parts. The packaging seems to have gotten alot better. Very sturdy box. It arrived within a few days from ordering which was a huge plus. I was able to get the job done sooner than planned. That kind of experience will keep me loyal to etrailer for any future trailer parts needs. Thanks guys and gals. Keep up the great work. As far as the parts, eveything was heavier duty than factory. Since I measured the old parts I was able to find the exact replacements for those parts. The job went so smoothly without any issues. These springs raised the trailer height without any load on the axles 1.5 inches. It was definitely time for new springs and hardware. Im kind of glad the one spring broke.


just like advertised


I have bought several products from etrailer. Trailer fenders, spare tire brackets, tongue jack and retractable stern straps. I've ordered all my parts at different times and all of them have shipped and received to me in a short time. I will be ordering more parts from them on my next trailer project


Worked as described. Still in the trailer with no issues.


I was so happy to be able to order the exact replacement shackle straps for my RV suspension system. This monster wasn't moving again until the repair was made.

etrailer offered my replacement strap at a great price with fast delivery. Let's not forget excellent customer service, helpful videos and detailed product descriptions to ensure you get the right part the first time. Thank you etrailer staff for your excellent customer care. I'll be back when the need arises.



Great products for a good price and fantastic service. I will be using etrailer again.
I broke one spring on my tandem axle trailer. After a little internet search I found etrailer. I decided to change all springs(upgraded to p4)shackles,equalizers,n bolts) total price around $200.00 about 40 percent cheaper than a local trailer repair shop..I ordered it early on a Tuesday and I got the order on Wednesday. Changed out parts on Thursday and back on the road on Friday. Great company to deal with!!


Loved the personal service and the help. I tried a few other sources before going online to order from etrailer. One place I tried was an online tool dealer, and their online site was a mess without help and so was a retail location. etrailer, was quick to find me exactly what I needed and got me fixed up in just a few minutes. From now on all my trailer needs will be fulfilled from etrailer!!!


I fabricate roll-out boat docks. I also fabricate light weight hinged shore ramps to make the transition from dock to shore. We weld 2 shackles at the end of a dock and the end of a ramp. We secure the ramp shackle to the dock shackle with a straight clevis pin and cotter creating a simple hinge effect. I like buying them in bulk vs a retailer that sells them in 2 paks and etrailer provides a good product at a fair price.


I had a trailer spring break this summer on the way home from a 2,700 mile trip. Our small luggage trailer just couldn’t take anymore rough roads. One of the springs broke through the centering bolt. The website and Tammie P. came through with replacement springs and accessories. Thank you Tammie P. And!


Ordered these shackle links by far cheaper than anywhere else i could find them.i installed them very easily.they seem to b a solid product.most importantly to me is etrailers business ethic.they had me my parts days before the delivery date.they sent them immediatly after ordering them.whats most impressive is it was a 6.00 dollar them its just as important as a 600.00 order.etrailer is the place to for all your trailer needs trust me.its nice to feel appreciated no matter what your order is.etrailer is my 1st stop shop


Awesome products & service

Show More Reviews

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

  • Thickness of TruRyde Shackle Strap # TRSL313
    I ran out to the warehouse, and pulled one of the shackle straps for you. When I measured it, I found that the TruRyde 3-1/8 inch shackle strap is .222 of an inch thick.
    view full answer...
  • How to Determine Trailer Suspension Hanger Location on Trailer
    What is the length of your leaf springs? Typically you put the hangers about 1/4 of an inch narrower than the length of the leaf springs from eye to eye when they are unloaded.
    view full answer...
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  • Dimensions of TRSL313 Trailer Suspension Shackle Strap
    As you can see in the photo I've edited for you, the # TRSL313 measures 4-1/2 by 1-1/4 inches. The center hole to center hole spacing is 3-1/8 inches and the bolt holes themselves are 9/16 of an inch in diameter.
    view full answer...
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  • Does Shackle Strap Come in Quantity of One
    The Shackle Strap # TRSL313 does come in a quantity of one, so the price is for each individual strap. For a single axle trailer you will need a total of four shackle straps. I have added a link to a video review of this strap for you to check out as well.
    view full answer...
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  • Should Shackle Straps Angle Towards the Axles or Away From Them
    In order for your trailer suspension to function properly you will want the angle of the shackle strap to be towards the axle so that as the leaf spring compresses and expands it will have somewhere it can go. Otherwise, you will not get the optimum performance from your trailer suspension. It may not be super dangerous, but if the suspension is not operating properly you could cause premature failure which might endanger yourself and other motorists. Check out the picture I attached that...
    view full answer...
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  • Should Tandem Axle Trailer Suspension Shackles be Replaced One Axle at a Time
    I'd recommend doing one axle at a time. Jack the trailer up by the frame on both sides and then jack the axle up to take the load off of it and then replace the shackles. Trying to do both sides at one time will be hard as the components will most likely have tension in them which will prevent them from from easily being removed and reinstalled.
    view full answer...
  • How to Find Correct Replacement Shackle Straps for Trailer
    In regards to measuring shackle straps, you don't need to remove them to measure accurately. If they are still installed on the trailer simply measure from the center of each bolt head, the two most common are 2-1/4" part # TRSL225 and 3-1/8" part # TRSL313. It looks like you have the smaller 2-1/4" but you really ought to just measure yourself first.
    view full answer...
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  • 2-1/2 Inch Shackle Straps Are Flipping After Replacing Leaf Springs
    Shackle straps can actually flip if they're too short as opposed to being too long, so it makes sense because you mentioned you put on shorter, 2-1/2" shackle straps. Also, if the leaf springs you replaced are shorter than what you had ( leaf springs elongate over time so you likely got ones shorter than what you replaced, as is common), straps can also flip. I recommend going with longer shackle straps, either the Shackle Strap - 2-3/4" Long # TRSL275 or Shackle Strap - 3-1/8" Long # TRSL313.
    view full answer...
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  • Replacement Trailer Suspension Shackle that is 3-1/8 inches Long
    We have 3-1/8 inch long shackle straps as part # TRSL313 which would work well for you. We'd recommend keeping the same length as what you have and using these shackles instead.
    view full answer...
  • What to do if Trailer Shackles are Flipping
    Generally the issue when shackles flip when hauling empty is that they are too short. So I recommend measuring them from center hole to center hole and assuming they are less than 3 inches, replacing them with longer ones, the 3-1/8" Shackle Strap # TRSL313 or 3-1/2" Shackle Strap # TRSL350.
    view full answer...
  • The Axles On My Trailer, One Is Up, The Other Is Down, What Should I Do
    Ideally, you want both of your axles to be overslung or underslung. After reading your question, it appears you have one of each. An overslung axle has the leaf springs on top of the axle, which the shackles underneath. The underslung axle has the leaf springs underneath the axle and the shackles on top of the axle. If you want to raise the height of your trailer, you want overslung axles. Your axles leaf springs may not match because your trailer's shackles can rotate while your trailer...
    view full answer...
  • Troubleshooting Shackle Straps That Keep Flipping Down
    Hey Joe, If your shackle straps are too short and there isn't enough weight on the trailer the shackle straps can flip down as you run over bumps in the road. Increasing to a 3-1/8" long # TRSL313 or 3-1/2" long # TRSL350 shackle strap size could help bring the leaf springs up towards the center a bit more and prevent the axles from dropping. Your hanger spacing is fine so I'm curious to see how wide the shackle straps sit outwards when the axles are sitting properly. If you'd like to...
    view full answer...
  • 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...
  • Shackle Straps Are Flipping on Tandem Axle Trailer
    Shackle links can flip when the trailer is unloaded since there isn't enough weight to keep them in proper position, and while a new, shorter equalizer may help, the easiest thing to check is the shackle links. Shackles that are too short can cause them to flip, so the best thing to check first is the length of your shackles, and replace them with longer ones if possible. You'll want to measure from center to center of the bolt holes to check their length, and replace them with one of...
    view full answer...
  • Parts Needed To Convert Boat Trailer From Slipper Spring To Leaf Springs
    Since you are converting your trailer from slipper springs to leaf springs I have linked one of our help articles below that will be able to help you with the conversion. A single axle trailer will typically use a 3-1/8" Long Shackle Strap # TRSL313. I'm not sure that you will be able to utilize your existing rear hangers as with a slipper spring the spring sits inside of the hanger. When you bolt straps to the outside of that hanger the hangers will then be to wide to fit properly on...
    view full answer...
  • Do I Need Longer Shackle Straps When Going 1-1/2 Inches Taller with a New Equalizer
    The difference in the length of the hangers typically dictates the lengths of the shackle straps and if you're going with a taller equalizer there may be a need to get longer shackles; going from a 2-1/2" tall equalizer to one that's 4" tall may not throw things off enough to require new shackles but getting something a little longer like the Shackle Strap - 3-1/8" Long # TRSL313 won't hurt and will likely make installation a bit easier.
    view full answer...
  • Can You Install Longer Shackle Straps on Single Axle Trailer for More Lift
    I do have an option for you but changing the shackle strap length will change the whole suspension geometry so that's not recommended unless changing other components such as the leaf springs. Furthermore, 3-1/8" is the longest length used on most trailers. I instead recommend using a leaf springer hanger extension kit like the Correct Track Trailer Alignment and Lift Kit part # LC87120 which will provide a lift of 1-1/4" or 2-1/4" as well as correct a misaligned trailer axle if present.
    view full answer...
  • Replacement Equalizers Measuring Approximately 6 Inches Long x 4 Inches Tall
    I do have options for you but they would need to be purchased individually as we do not offer an all inclusive kit with equalizers, shackles, and bolts in the size you need. The closest equalizer we have to the provided dimensions is part # TREQ310 which measures to be 6-1/16" from the center of the bottom two bolt holes and 4" from the center of the top bolt hole to the center of the bottom bolt hole. These equalizers work with 1-3/4" wide leaf springs with 9/16" spring eyes. I have attached...
    view full answer...
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  • Can I Use 1/2" Longer Shackle Straps for My Trailer Suspension
    If the shackle straps are within a 1/2" of what you normally had, say the 2-5/8" # 115052 to 3-1/8" # TRSL313, you should be okay to install them. Just make sure that all of your shackle straps match though. If you are using the longer straps only for a section of your suspension setup then that will cause issues for your trailer.
    view full answer...
  • Can Tandem Axle Spring Hanger Spacing Be Increased to 30-1/4-Inches to Fit Larger 235/80R16 Tires
    For your 3-inch axles the normal spacing of the hangers included in the DexterTandem-Axle Trailer Hanger Kit is 29-1/2-inches. You can probably space them the 3/4-inches further apart, to a spacing of 30-1/4-inches, without too much impact on the suspension geometry. However, you may be able to compensate for this change by using longer shackle straps. The shackle straps supplied with the kit are part # 115052 which are 2-5/8-inches long. We offer part # TRSL313 from TruRyde. We do not...
    view full answer...
  • Replacement Shackle Straps and Equalizers for 2005 Weekend Warrior FS 2200
    For your 2005 Weekend Warrior FS 2200, the 3 inch shackle straps you have measuring center on center is not something we carry. My recommendation is to instead use the Shackle Strap - 3-1/8" Long # TRSL313. There are replacement equalizers (the triangular pieces), but I need more information on the sizes to give you a specific replacement option. I've linked the page to all the standard equalizers we carry to assist. You will want to measure center on center horizontally and then vertically...
    view full answer...
  • Suspension Hanger Kit Recommendation for Single Axle Trailer
    I'd go with a new hanger kit for your single axle Shorelandr trailer like with the part # APS4 so that you get all new mounting hardware that's designed to work together and the correct sizes. This kit is designed for smaller trailers like what you have and includes 3-1/8 inch long shackle straps like the # TRSL313.
    view full answer...
  • Replacement 3 inch Center Hole Shackle Strap for Trailer Suspension
    The best match we have for you is the Shackle Strap # TRSL313 which measures 3-1/8" center hole to center hole, 4-1/2" long x 1-1/4" wide, and just under 1/4" thick. This is designed to work with 9/16" diameter bolts. Attached is a video showing these dimensions for you to reference.
    view full answer...
  • Can 2-1/2" Shackle Straps be Used for 2006 Innsbruck-Lite 26RB Suspension
    When it comes to shackle straps on a trailer suspension it really boils down to what looks correct. Since leaf springs and equalizers can be switched out (especially on older trailers), longer or shorter shackle straps can be used to help make sure everything is lined up correctly (see attached photo). As long as your suspension looks like that photo then it is perfectly fine to use 2-1/2" shackle straps like the part # 115052 which is 2-5/8" long. If your suspension doesn't look like...
    view full answer...
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
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Employee Zack K
Video Edited:
Zack K
Employee Jacob T
Video Edited:
Jacob T
Employee Kathleen M
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Employee Lindsey S
Written by:
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Employee Dustin K
Video by:
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Employee Cole B
Installed by:
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Employee Bradley B
Installed by:
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