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Nylon Bushing - 9/16" Inner Diameter, 11/16" Outer Diameter - 1-3/4" Long

Nylon Bushing - 9/16" Inner Diameter, 11/16" Outer Diameter - 1-3/4" Long

Item # TRBU11566
Our Price: $3.78
You Save: 7%
Trailer Leaf Spring Suspension
Shipping Weight: 0.01 lbs
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Nylon bushing is designed for use with trailer suspension systems. Insert it into the eye of a leaf spring to ensure proper sizing for suspension bolts. Great Prices for the best trailer leaf spring suspension from TruRyde. Nylon Bushing - 9/16" Inner Diameter, 11/16" Outer Diameter - 1-3/4" Long part number TRBU11566 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (440)
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TruRyde Trailer Leaf Spring Suspension - TRBU11566

  • Bushings
  • Boat Trailer
  • Camper
  • Car Hauler
  • Snowmobile Trailer
  • Utility Trailer
  • 1-3/4 Inch Long
  • 9/16 Inch ID x 11/16 Inch OD
  • TruRyde

Nylon bushing is designed for use with trailer suspension systems. Insert it into the eye of a leaf spring to ensure proper sizing for suspension bolts.


  • Inner diameter: 9/16"
  • Outer diameter: 11/16"
  • Length: 1-3/4"
  • Quantity: 1

BU1-1566 TruRyde Nylon Bushing - 9/16" Inner Diameter, 11/16" Outer Diameter

Customer Satisfaction Score:

Customer Reviews

Nylon Bushing - 9/16" Inner Diameter, 11/16" Outer Diameter - 1-3/4" Long - TRBU11566

Average Customer Rating:  4.8 out of 5 stars   (440 Customer Reviews)

Nylon bushing is designed for use with trailer suspension systems. Insert it into the eye of a leaf spring to ensure proper sizing for suspension bolts.


Excellent service and quick delivery and great price, all looks good, thanks for helping me out with these items that I can't find around my area anymore,AES



Still holding up well and I always keep them wet with grease and after that if looking dry apply 50 weight oil just before you leave to work it into the sleeves, looking like new ones still, and I still couldnt beat your price that I got the full set for tandem axles hope you helped others out like me, good product


I Waited Too Long to Replace Trailer Bushings
past few years I would hear “clunking” sound (different than “squeaking”) from my boat trailer, but I got concerned this year as it seemed louder.
-With the boat off the trailer I could see wear around the shackle bolts
-I called eTrailer to order the parts and was helped by Kayla to order the bushings/shackles/bolts/nuts for my tandem axle trailer
-After trying to press the bushings in I realized I measured poorly and had two different bushings, the equalizer had 1 size and springs had a different size.
-Amanda helped me get the second set of bushings (delaying the project for 5 days…but my fault)

Right or wrong:
-I applied anti-seize compound to the shackle bolt threads
-I pre-loaded the “wet” bolts with marine grease to fill them up before inserting them into the suspension, adding grease when everything is installed
-I tightened the bolts very securely and they backed off the nut ½ turn to allow for suspension movement

Lessons learned:
-Look for different size bushings in equalizer/springs and measure correctly ID & OD precisely
-It takes some time to do this job (about 4 working hours per side) so try to do it when you are not under pressure
-If you want the re-paint some parts, allow for primer and top coat drying time, i.e. overnight which adds time to the project, but it comes out better
-Have a big breaker bar & extension/enforcer to help get the nuts on & off. My ½” impact gun could not tighten them all the way
-A large “C” clamp will press the bushing in smooth & straight instead of using a hammer & block of wood “caveman style”
-Annually inspect your trailer suspension for signs of wear and listen for increased noise

Thanks again to Kayla, Amanda and eTrailer for help with this project.


Bushings fit perfect and stopped all ra ttling


Fantastic! Shipping was fast, it fit and the replacement is finished. Only flub was me ordering four instead of 6.

The attached pic shows how bad the old bushings were and why I was getting tread wear down on the inside of the tire.


I had one broken leave Spring Shackle so i Replaced All of the Shackle Brackets & Bolts & Bushings everything worked Great finished project in no Time Thanks for Everything


Good product but I ordered 4 and only received 2 when can I expect the other 2

Etrailer Expert

Jenny N.


Looks like there was a mistake on our part. I will have our Customer Service team reach out to you.


Leaf springs were great. One was missing a bushing, so they express mailed one to me right away. They are by far the best customer service of companies I deal with!


I am rebuilding an old trailer and was lucky enough to get Justin on the phone. Hel listened to my needs and searched until he found the hanger bolts and bushing the fit my equalizer perfectly. He is a real pro! The trailer is coming along great thanks to your great staff


I replaced leaf springs on my trailer , springs , unbolts and leaf eye bolts were perfect fit and the job when easy the hard part was getting the old springs off. I know now to keep them siliconed up from now on for future problems.

David E.


Great no issues


I ordered 8 of these, and 2 came with cracks longitudinally. I called customer service (on a sunday, which is nice), and they are getting 2 new ones out to me. Otherwise the 6 good ones were fine and installed with no issues. Once I receive the other 2, i will bump this review up from a "2" to a "3" or "4".


Two of the 6 bushings arrived broken because they were shipped in the sa.e box as the heavy spring. The were o ly packed in a lightly padded envelope!


Yes, thanks for a great product. Installed easy after a little labor of disassembly of all springs attached to my fifth wheel. but sadly to say I only experienced a few trips before breaking a spring and then having to replace all four springs that came with new bushings. Thanks again.


Couldn't be more satisfied! I change from 5 on 5 to 5 on 4.5. I've been rolling on these hubs about 2500 miles. Every time I jack up the trailer I spin the tire, smooth as ever. Thankx LSD


Came with the bushings all individually in the box vs an all in one bag/package. Ordered 8 but in the box was only 6 clearly lost from transport which is very frustrating and now unable to finish the project in time before our travels. Do not buy from etrailer buy the same ones from Michigan Truck for a 1/3 of the price.

Katrina B.


I am sorry to hear that your order arrived in this condition. I have sent your information over to our customer service department for them to better assist you.


Got for stock, not used yet


Parts are a 5, delivery options questio nable.


Didn't need them but we're of great qua llity


I knindof wish I had gotten the upgrade. But I will see how difficult this is to install first


Just what we ordered and on time. Thank you



They worked out great


Bushings quiet the trailer for a short period of time. Bushings wear out and squeaks return quicker than I expected.


This inner diameter fitted my spring leaf perfectly!


Spot on bushing for my leaf springs. Only suggestion would be to include instructions for lubrication. I wasn't sure, so I coated them inside and out with a thin layer of hi-temp grease.

Etrailer Expert

Laura E.


Michael, thanks for your review and your business. You will probably find it easier to the shackle bolts into the bushings if you lightly grease the bolts. A small amount of lubrication will both aid installation and provide a degree of lubrication for the whole assembly. You can use a general-purpose lithium grease like L11316.



The parts I bought from you to repair the suspension on our live stock trailer did the trick of getting it roadworthy. We dont use it often, but the couple times weve had it on the road since the repairs have been uneventful and thats a good thing when you have a couple tons of beef on it.


Perfectly replaced old rusty worn parts /bolts.


Good quality, quick delivery, everything fit as expected. Thank you again, etrailer!


You really need to replace these bushings when you do any work on the springs,
They are very easy to push out and reinstall.
Most of the bushings I replaced were very out of round. This should make my 5th wheel trailer track much better.

Show More Reviews

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

  • Should There Be Play Between the Bushing and Wet Bolt of Trailer Suspension
    If there is a tiny bit of play in suspension components that are designed to move you would be fine. 1/16 of an inch isn't very much. Typically there aren't any torque ratings for shackle bolts. We run them down tight or until the knurls are no longer exposed under the head of the bolt, then back them off enough to prevent the suspension from binding.
    view full answer...
  • Can Nylon Bushings for Trailer Suspension be Used with Wet Bolts
    You can use wet bolts with nylon bushings or bronze bushings. It does not matter which material the bushings are. Also nylon and bronze bushings have about the same longevity.
    view full answer...
  • How Tight Should Nuts of Trailer Suspension Shackle Bolts be Torqued To
    Shackle bolts don't typically have a specific torque value. They're usually tightened until the knurled portion of the bolt pulls completely into the shackle strap and the bolt head is ran all the way down to the shackle strap and you have at least 2 threads extending past the face of the nut.
    view full answer...
  • Dimensions of Hangers and Equalizers on Tandem Axle Suspension on 16-Ft Trailer
    Front and rear springs hangers should be equally spaced around the center hanger and spring equalizer. It may be that your trailer was modified (if not originally built) with a different height center hanger and that might be how the spacing became how it is. Also, it may be that at some point the shackle straps were changed to a different length - we offer three different lengths: 2-1/4-inch, 2-5/8-inch and 3-1/8-inch. On a tandem axle trailer the 2-5/8-inch length is most common. It...
    view full answer...
  • Should Trailer Hangers be Spaced Equally Apart on Tandem Axle Trailer
    Ideally you want the hanger spacing to be the same on a dual axle trailer like what you are building but a slight difference may not cause any issues. The shorter spacing that you have between the equalizer and one of the outside hangers essentially results in a leaf spring stack that is just a tad too long. The only thing you will want to watch out for is the chance that the shackle straps on the equalizer can make contact with the trailer frame. What you can do is manipulate the suspension...
    view full answer...
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  • Bushing Recommendation for a Camper Trailer Leaf Spring
    I would go with the Never Fail Bushing like part # TRBU11566 as it is self lubricating and maintenance free. You basically wouldn't even need the wet bolts. Right now we only offer these in one size, 9/16 inner diameter, 11/16 outer diameter, and 1-5/8 inch overall length. This is the most popular size needed though. If you need a different size check out the link I attached to see all our bushings. You will then be able to select the size you need from the filters.
    view full answer...
  • Replacement Nylon Bushing for Leaf Spring that is 1-3/4 inches Long and 3/4 inches Outer Diameter
    The closest bushing we have to what you will need is the part # TRBU11566. This is 1-3/4 inches long, has an outer diameter of .75 of an inch and has an inner diameter of .562.
    view full answer...
  • Should Wet Bolts be used on 3,500 pound Dual Axle Leaf Spring Replacement on a 2000 Skyline 26 Nomad
    As long as the wet bolt that you are intending to use is the appropriate size, wet bolts can be used on the fixed side of leaf springs. You will want to make sure that the bolt is the correct diameter, length, and that there is not a clearance issue with any other parts of the suspension when considering using a wet bolt. I have included a helpful article that explains a some differences in types of suspension bolts for your reference.
    view full answer...
  • Suspension Bushing for 1960s Camper Trailer
    It sounds like you need new leaf spring bushings # TRBU11566 for your 1960s trailer. For reference I have linked our pages for suspension bushings in particular and for various trailer suspension parts in general. I also included a helpful article on trailer suspensions. You do not mention your specific bushing size so you can review the linked bushing page to see the items we stock. You can click on the length and inner and outer dimensions you need to see what we offer in that size....
    view full answer...
  • How to Determine if a Trailer Axle is Out of Alignment or Suspension is Worn
    It is unlikely that worn bushing would cause poor tracking or sway unless something else was also worn. Look for any egg-shaped holes in the hangers, spring, equalizers and any other suspension component. This would be an indication of excessive wear and replacing the worn parts would likely help. If you were to measure from a single point on the trailer coupler to the center of the the axle on one side, then do the same thing on the other side, the measurements should be nearly identical....
    view full answer...
  • Size of Nylon Bushing Needed For Double-Eye Leaf Springs on Triple Axle Trailer with 7,000-Lb Axles
    If you are replacing the leaf springs on your triple axle trailer with new springs the bushings will be included in the new leaf springs. If you are just replacing the bushings in the double-eye springs for a 7,000-lb axle you will need the TruRyde Nylon Bushing, part # TRBU11566. These bushings have a inner diameter of 9/16 inches and an outer diameter of 11/16 inches. The length of the bushing is 1-3/4 inches. These bushings are what fit the Double-Eye Spring, part # PR-6, that we carry...
    view full answer...
  • Comparing Nylon Bushings TRBU11566 and 721590
    The Nylon Bushing part # TRBU11566 and Nylon Bushing part # 721590 are pretty much the same, they both are made of nylon and have the same dimensions. The former is made by TruRyde and the latter is made by Dexter. I will say however that Dexter is a more well known trailer part manufacturer and used as an OEM for most trailers.
    view full answer...
  • Are Bushings Included in Double-Eye Springs
    Bushings are sometimes included in double-eye leaf springs. Sometimes they wear out and need to be replaced. You can purchase replacement bushings separately. You will need to know the bushing's inner diameter, outer diameter and the length of the bushings to order replacements. It does not matter which material, nylon or bronze, the bushings are. Also nylon and bronze bushings have about the same longevity.
    view full answer...
  • Do You Sell Replacement Bushings for the Leaf Springs on my Boat Trailer
    Yes, we do sell bushings for use with trailer suspension systems. I am including a link that will show you all of the sizes of bushing that we have available.
    view full answer...
  • Do Trailer Suspension Equalizer Kits Come with Leaf Spring Bushings
    Most leaf springs for trailers come with bushings so the equalizer kit part # AP233 does not include them. We offer some bushings though if you are in need of them. I attached a link to a page that has all of them. You will need to determine the inner and outer diameters that you need plus the width. A very popular one is the part # TRBU11566 that has an ID of 9/16 inch, is 1-3/4 inches long and has an OD of 11/16 inch.
    view full answer...
  • Selecting Suspension Components for 1985 Skyline Trailer
    You can select individual parts such as shackle straps, bushings and equalizers when the specific combination you need is not offered as a kit. For shackle straps use the linked page to see all 3-1/8-inch long links. Bushings like Never Fail # TRBU11566 and shackle bolts are shown on other linked pages. A helpful article on trailer suspensions is linked for your reference.
    view full answer...
  • Do Lippert Never Fail Bushings Need to be Replaced and When to Inspect Trailer Suspension
    The great thing about the Lippert Never Fail Bushings like # LC279685 is that the durable polyamide construction essentially eliminates the need to ever replace them. They are designed to simply never wear out to the point that the holes would be elongated. It's going to always provide a tight setup with the trailer suspension and its self-lubricating nature also keeps you from having to grease them up every now and then. In general we recommend inspecting a trailer's suspension components...
    view full answer...
  • Replacement Bushing for Equalizer part # TREQ458
    The replacement bushing for the center bolt hole of the Equalizer part # TREQ458 is the part # TRBU11566.
    view full answer...
  • Size of Bushing Inner Diameter in Slipper Leaf Springs
    Replacement trailer leaf springs should be selected based on axle weight rating and also on spring length. The 2-Leaf Slipper Spring # SP-177275 fits 1000-lb-rated axles, is 24-5/8-inches long and has 9/16-inch inner diameter (11/16-inch outer diameter) bushings like # TRBU11566. None of the slipper springs we offer has a 1/2-inch inner diameter bushings, either 9/16-inch or larger. All such springs are shown on the linked page. Be sure to replace your springs in pairs to avoid issues...
    view full answer...
  • Are Trailer Equalizers Designed to Move
    Equalizers like the part # TREQ310 that you have are designed to move or pivot from side to side to allow the suspension to work properly and distribute the load of varying road heights evenly to all axles. If the bushings are worn out we have the part # TRBU11566 which are the correct replacement bushing for the # TREQ310.
    view full answer...
  • How to Determine Axle Placement on a Custom 5 x 9 ATV and Motorcycle Trailer
    When determining the axle placement on a trailer, an important factor to consider is the tongue weight. You want the tongue weight of the trailer to be approximately 10 percent of the gross trailer weight. Moving the axle rearward will increase the tongue weight of the trailer. A heavy tongue weight could cause issues with traction and sway when towing, but that is not as much of a concern on smaller trailers than it is on larger travel trailers or enclosed trailers. First, we want to...
    view full answer...
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  • How to Use the Leaf Spring part # PR4B with 1/2 inch Bolts
    You can replace the bushing of the Leaf Spring # e54SR with one designed for a smaller 1/2 inch diameter bolts. For the smaller bushing you could get a Nylon Bushing # TRBU11506.
    view full answer...
  • What Type of Bushing Comes with 4-Leaf Slipper Spring w/ Radius End for 2,000-lb Trailer Axles
    The bushing that comes with the 4-Leaf Slipper Spring # SP-179275 is a nylon bushing like part # TRBU11566 so you need a standard non-grease bolt like part # 166079 for the installation. The nylon bushings are pressed in there by themselves without any specific type of sleeve.
    view full answer...
  • Leaf Spring Bushings Closest to 1-1/4 Inch Outer Diameter
    We do have bushings that are close to the 1-1/4 inch outer diameter, but not precisely. The Two Piece Nylon Bushing - Qty 4 # SP05-080 have a 1-5/16 inch outer diameter so it is very close, being 1/16 of an inch off. They do have the 9/16 inch inner diameter you need, and are 2 inches long. I have added a link to a video review of these bushings for you to check out as well.
    view full answer...

Do you have a question about this Trailer Leaf Spring Suspension?

Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Rachael H
Expert Research:
Rachael H
Employee Kathleen M
Video by:
Kathleen M
Employee Randy B
Installed by:
Randy B
Employee Bradley B
Installed by:
Bradley B
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Manda E
Updated by:
Manda E

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