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Triangular Equalizer for 1-3/4" Double-Eye Springs - 6-1/16" Long - 9/16" Center Hole

Triangular Equalizer for 1-3/4" Double-Eye Springs - 6-1/16" Long - 9/16" Center Hole

Item # TREQ310
Our Price: $23.62
You Save: 9%
Trailer Leaf Spring Suspension
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Shipping Weight: 3 lbs
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6-1/16" Long triangular equalizer connects double-eye springs on tandem- or triple-axle trailers and allows for enough movement between the axles to keep the ride smooth and the load undisturbed. Designed primarily for RVs and mobile homes. Great Prices for the best trailer leaf spring suspension from TruRyde. Triangular Equalizer for 1-3/4" Double-Eye Springs - 6-1/16" Long - 9/16" Center Hole part number TREQ310 can be ordered online at or call 1-833-496-1390 for expert service.
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TruRyde Trailer Leaf Spring Suspension - TREQ310

  • Camper
  • Car Hauler
  • Utility Trailer
  • Standard Equalizer
  • Double Eye Springs
  • 6-1/16 Inch Long
  • Tandem Axle
  • Triple Axle
  • TruRyde

6-1/16" Long triangular equalizer connects double-eye springs on tandem- or triple-axle trailers and allows for enough movement between the axles to keep the ride smooth and the load undisturbed. Designed primarily for RVs and mobile homes.


  • Connects double-eye springs on dual- or triple-axle trailers
    • Springs attach to ends of equalizer with shackle straps (sold separately)
    • Equalizer is suspended from center hanger (sold separately)
  • Transfers load and sudden impacts from one axle to another by permitting movement between the axles
    • Distributes weight evenly
    • Results in smooth ride for trailer
  • Used primarily in RV and mobile-home industry


  • Fits 1-3/4" wide, double-eye leaf springs with 9/16" spring eyes
  • Center bolt hole diameter: 9/16"
  • Left and right bolt hole diameter: 9/16"
  • Dimensions: see diagram


EQ-310 TruRyde Tall Triangular Equalizer - 6-1/16" Long x 4" Tall

Replaces 13-10 Tall Triangular Equalizer - 6" Long x 4" Tall

Customer Satisfaction Score:

Customer Reviews

Triangular Equalizer for 1-3/4" Double-Eye Springs - 6-1/16" Long - 9/16" Center Hole - TREQ310

Average Customer Rating:  4.7 out of 5 stars   (82 Customer Reviews)

6-1/16" Long triangular equalizer connects double-eye springs on tandem- or triple-axle trailers and allows for enough movement between the axles to keep the ride smooth and the load undisturbed. Designed primarily for RVs and mobile homes.


Fit perfectly, I removed plastic bushings to use wet bolt heavy duty shackle kit!! Everything fit perfectly!!!


i have ordered many parts for my old car trailer, and every part has fit perfectly. easy website to find my parts also.etrailer is awesome! And i am a hard man to please


I have a 2001 travel trailer and I had a spring break on the front axle, thank God I was only a quarter mile from home. I went on the E trailer site easily found the springs I needed, the Triangular equalizer, and the bolts I needed. My order arrived 3 days later, I was very pleased with the quality of all my parts. Some reviews complain about the parts made in china, well lets be honest what is made in the USA any more. Every thing fit as expected and my project is done. Would definitely recommend E trailer to anyone who wants a good product at a fair price . Thanx E trailer!!


Thank you for having the part in stock


Having the needed part in stock was a major plus.!
Thank you


The item arrived as described and works as it should.


The product is exactly what I ordered. Shipping was very quick. The staff at Etrailer was very pleasant and knowledgeable. I'm sure I will order from them next time I need parts for one of my trailers.


Poduct very well built, shipped fast just what i needed


Product seems to be of decent quality, but was missing a bushing when I recieved it. That put me another 3 days behind waiting for them to send out a bushing to replace the one left out of the order. They aren't able to be locally procured for me, so I had to wait on shipping. Quality control could use some work.


This product was easy to install and seemed to be well made. It gave me a few extra inches of height that I wanted to help level my fifth wheel. I would have prefered to find one made in the USA and one that had bronze bushings. I took out the plastic bushings and installed the equalizer with a wet bolt kit with bronze bushings and grease zerks on the bolts. The service at etrailer was great. I needed the equalizers quickly and etrailers representative was friendly and helpful and shipping was immediate.


Old ones out, new ones in. Easiest thing I've done to the camper to this date. Fast delivery time and well packaged. I will be doing all my future business with you.

Those pieces went in and work flawlessly. They did exactly what I needed them to and to tell the truth I forgot about until now. I had a wonderful experience doing business with you and I will only buy my parts and supplies from you in the future.
-- comment by: Jimi - 03/17/2014


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!!


I ordered springs, bushings , shackles, equalizer, and bolts from e-trailer for my rv tandem axle Chris helped me insure I had the correct parts and the correct quantity of parts. I put one on and everything went fine. The only problem was the galvanized coating on the shackles made the hole to small and had to be drilled. ETrailer has great videos to show you how it is done. The phone sales staff was knowledgeable and effective, and shipment was quick, and all parts were there.


Fast delivery, product as described online. Used on a 1999 Carmate trailer. Works great!


First time buyer @ etrailer, web-site was easy to navigate and find what I needed at a very good price. Shipping was very quick. Parts installed without any problems... very nice fit.

Thanks, will be looking forward to our next shopping trip.


This is great company. Fast shipping, great service, cheaper than local store. Just repair my trailer today and fit perfect for my 4 spring leaf replacement. This is good quality. You can't go wrong with eTrailer. Thank you.



Product solved suspension issue, increasing clearance to frame just enough to avoid spring to frame contact.

Triangular equalizer works great, just exactly what I needed, typical of everything i’ve gotten from Etrailer. Make it your first place to shop and it will be a one-stop shopping experience.
Steve M - 09/02/2018


Expected as per their picture and video. I like their product video too helps in selecting

Shipment was in time they could improve their packing for putting nuts and bolts. Small hard boxes would do good putting in zip lock bags gets torn

Otherswise parts and service is excellent


Fit perfectly. Thanks


I have installed the equalizers - time will tell how well the equalizers hold up. I'm not thrilled seeing that the equalizers were made in China, but I'll keep an open mind.


Service from staff was great ,order was shipped fast ,Waiting on shackles,I recived a call and email that shackles were not in stock for delivery but they will ship them soon as they came . Great customer service,Will order from etrailer again will post pictures in future were are building a travel/gypsy trailer. Thanks etrailer


Very impressed with the quality of your products that I purchased from etrailer.Your knowledge of the products and expertise was greatly appreciated.Thanks again!


Etrailer did a great job with everything. I will use them for all my rv needs. Their staff was super patient ans helpful with everything. Worked out perfect with my suspension.


I ordered a I ordered a part for my trailer several parts it was easy to do the guy was great I was talking to a very helpful and everything turned out just fine got my order very quick my trailers back on the road again


It helped my 1973 coachmen camper ride like new again. The how to videos were a great help. High quality product at a very good price.

Show More Reviews

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

  • Troubleshooting Rear Hangers Breaking and Front Shackle Strap Making Contact with Trailer Frame
    If a rear hanger has broken off twice at the weld on your tandem axle trailer, it's possible that your axles aren't lined up perfectly which is leading to a twisting action during travel. I recommend checking to be sure that the axles are lined up straight with the trailer frame and that nothing looks off with regards to their orientation with each other. Your front shackle straps coming into contact with the trailer frame likely isn't related to the rear hanger issue, but it still is...
    view full answer...
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  • Can Taller Equalizers be Used for Better Clearance Between Suspension and Trailer Frame
    You can use taller equalizers but you will likely have to add taller hangers too so that everything increases in height the same. Otherwise you will have a suspension that is not level. I have included a link to the hanger main page for double-eye springs for you.
    view full answer...
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  • Adjustable Suspension on a 5th Wheel Trailer to Get More Height to Tow Trailer Level
    I can't confirm that an over/under kit would work for you because of the unique hangers on the trailer. Though it does look like it was designed to be adjustable. It also would appear that the amount of height you would gain would be approximately equal to the center to center distance from one mounting hole to the next. This would appear to be a great option for you provided all the hanger locations have additional mounting holes like in your picture. You may also need some addition...
    view full answer...
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  • Torque Rating for Shackle Bolts and Trailer Suspension Components
    If you are using 9/16 inch shackle bolts which are the most common you will want 65 to 95 foot pounds of torque. If you are using 1/2 inch then go for 45 to 70 foot pounds. And for 5/8 inch bolts use 100 to 120 foot pounds. You probably would not be able to move the suspension easily if at all by hand once properly tightened down. I have included a link to our help articles on double-eye springs and slipper spring suspension systems for you to view as well that might offer some additional...
    view full answer...
  • Taller Tire Recommendation for a Trailer to Lift it
    What about going with a taller tire on the trailer? Using blocks or longer hangers and shackles can give you additional height but this can cause the trailer to be a bit top heavy since the trailer's suspension will be altered. Check out the link I attached to the right that has a chart with all of the trailer tire sizes we offer. You will want to check to see what you have and then find a size larger (as long as you have the clearance) that will also fit your trailer's rims. In the far...
    view full answer...
  • Why Do Trailer Suspension Equalizers Come in Different Shapes and Sizes
    Equalizers for trailer suspension have different shapes, lengths, and heights to accommodate different axle spacing, spring lengths, and deck heights. Going to an equalizer that is not the same length and height as the original will require replacing other parts as well including but not limited to the spring hangers and springs themselves. The previous owner of your trailer probably wanted the trailer lower but he didn't do it correctly. With the bow in the axle facing done it reduces...
    view full answer...
  • Can TruRyde Equalizer part # TREQ310 be Used with 7k Axles
    The TruRyde Equalizer part # TREQ310 can be used on a trailer with 7k axles like what you have.
    view full answer...
  • Can a Trailer with Leaf Springs Above Axles be Raised
    In your situation where you already have the springs above the axles your best option for raising the trailer suspension is to install taller suspension hangers. I attached a link to a page that has all of the hangers we offer. You would want to measure the height of your current ones and then find ones tall. Ideally you want to have the trailer sitting as level as possible with at least 6 inches between the bed rails and the trailer overhang.
    view full answer...
  • Availability of 4 inch Tall Trailer Equalizer with 6 inches Between Mounting Holes
    Based on what you listed the closest equalizer we have to what you need is the part # TREQ310. This is 4 inches tall from center of mounting holes and has a distance of 6-1/16 inches from left to right. I attached a picture of the dimensions as well.
    view full answer...
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  • Can a 4 Inch Tall Equalizer be Used in Place of a 2 Inch to Get More Height On a Trailer
    You could use a taller equalizer but you would also need to use taller front and rear hangers as well. Everything will have to be raised equally so if you go up 2 inches in one spot you have to go up 2 inches in all spots. If you do not raise it at all the hangers as well the trailer will ride awkwardly and lead to poor tracking, uneven tire wear and could reduce the capacity of the trailer. When raising the height of a trailer you also raise its center of gravity. This makes the trailer...
    view full answer...
  • Longer Hanger Recommendation for Lifting a Trailer 1-1/2 inches for Tire Clearance
    You actually would want shorter shackles for additional lift and then a taller equalizer would help as well. For as much of a lift as you are wanting I would recommend you get hangers that are about 1-1/2 inches longer though, since you want your leaf springs to sit level. And to get 1-1/2 inches of lift by changing shackles and equalizers you most likely will have your leaf spring not sitting level. I attached a link to a page that has all of the hangers we offer. You will need to determine...
    view full answer...
  • Could Trailer Suspension Be Lowered by Lowering Height of Equalizer
    Yes, if you lowered the height of your trailer's equalizer the height of the trailer would change. That said this is not the best solution as the outside hangers on the trailer suspension are at a height is designed to allow the leaf spring to sit level. If you change the equalizer height drastically without changing the hanger heights too you'll end up with springs that won't sit level. A better option would be to cut the hangers off and go with ones shorter than what you have so that...
    view full answer...
  • What Affects Axle Spacing on Trailer Aside from Equalizer Dimensions
    If the equalizer part # TREQ310 matches the dimensions you need it would work regardless of the axle spacing differences you mentioned. Axle spacing is affected by the dimensions of the equalizer like you mentioned but also by the length of the leaf springs. I attached a picture that has all of the dimensions of this equalizer for you to check out as well.
    view full answer...
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  • Can I Change Out My Short Equalizers For Taller Equalizers
    You could use a 6-1/6" long by 4" tall equalizer like part # TREQ310 to replace your 6-1/8 x 3-3/4 however changing to a taller equalizer may require you to change to taller spring hangers to keep the geometry correct. The suspension may still be level without changing the hangers but it is possible you will have to change them. I have attached a helpful article for your reference.
    view full answer...
  • Replacing Straight with Triangular Equalizers On a Trailer
    In order to confirm fit of the Triangular Equalizer for 1-3/4" Double-Eye Springs part # TREQ310 you need to verify the spacing between the lowermost holes on the equalizer either matches what is currently installed on the trailer or will match when new shackles straps are also installed to make up the difference. The above equalizer measures 6-1/16". The height of the equalizer is not as important. It will provide lift if going to a taller option but it's not a direct 1:1 ratio. If you...
    view full answer...
  • Why Would Trailer Suspension Equalizer Sit at Angle After Moving Boat Forward on Trailer
    You want to have as much weight forward like you did so that the trailer doesn't sway or porpoise like you mentioned. If the equalizer of the trailer suspension is now sitting at an angle that indicates that your tow vehicle suspension is now sagging to point the nose of trailer is lower significantly. One solution is suspension enhancement which will give you more support like you need so that sag goes away. Or you could go with a ball mount that has less drop but that doesn't fix the...
    view full answer...
  • Using Taller Equalizer to Lift Trailer After Changing to Lower Mounting Holes on Hangers
    As you mentioned in your question, we typically recommend replacing existing hangers with taller ones to ensure you get the trailer lift you are wanting. But with that being said, in your particular application, that is what you will essentially be doing since you already adjusted the front and rear hangers to the lower mounting hole. Because of this, replacing the 2 inch tall Equalizer # TREQ104 with the 4 inch tall Equalizer # TREQ310 that you referenced will indeed lift your trailer...
    view full answer...
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  • Correct Installation of Suspension Equalizer on Boat Trailer
    A tandem axle trailer suspension's equalizers like # TREQE1 should install with the single center hole at the top, where it attaches to the center hanger. This can be seen in the linked diagram taken from our article on double-eye trailer suspensions. This diagram also shows how the shackles should be positioned. Neither the shackle straps nor the spring eyes should be contacting the trailer frame. If you can send us a photo or two showing your suspension we may be better able to diagnose...
    view full answer...
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  • Hanger Spacing for Tandem Axle Trailer Using 25-1/4-Inch Leaf Springs
    The distance on center between the spring hanger bolt holes for dual axle setups, with the # APT9 Tandem-Axle Trailer Hanger Kit, should be 29-1/2 inches for double eye springs that measure 25-1/4 inches on center between the spring eyes and for axles that are 3 inches in diameter. This will put your axle spacing somewhere between 33-1/2 and 34 inches. You will also need to determine the position of the axles before welding the spring hangers into place. The general rule of thumb for...
    view full answer...
  • Recommended Sliding Fifth Wheel Hitch For 2005 Ford F-150 Towing Camper That Is Hitting Bed
    There are a couple of things to look at for your setup. Since you said you have a 6-1/2 ft bed on your 2005 Ford F-150, I assume you have a sliding hitch installed. You also said you have also maxed out your trailer arm. My guess is you are talking about your pin box on the trailer. The first thing I recommend is that you make sure the pin box is attached to the lowest positions which would put more space between the truck bed and the trailer. If you have done that, there may be a couple...
    view full answer...
  • Is there a Equalizer for Tandem Axle RV to Gain Two Inches Height from Current TREQ310?
    There is not an equalizer that will give you that height in the center. The # TREQ310 you already have are the tallest standard equalizer with the 4 inch center to center height. If you need to add 2 inches to your system, you will either need to replace that center hanger or you can use the Lippert Components Center Point by Trailair Air-Ride Suspension Upgrade - Tandem Axle # LC1565391 which will raise that center by 2 inches based on the mounting design. I've linked the page to all...
    view full answer...
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  • Can the Road Armor Shock Absorbing Equalizer Kit Replace the Triangular Equalizer TREQ310
    You can substitute the Road Armor Shock Absorbing Equalizer Kit # LC696740 for your Triangular Equalizer # TREQ310 but you will need to get shorter shackle straps as well. They both have the same side to side measurement for the wet bolt holes but the Road Armor is about 3/4" shorter than your current equalizer. Attached is a link to our list of shackle straps that you can filter through to find what you need.
    view full answer...
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  • 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...
  • Replacement Bushings for # TREQ310 Trailer Suspension Equalizer
    According to Tru-Ryde, the actual hole in your # TREQ310 equalizer should be 11/16 with the inside diameter of the bushing to be 9/16 of an inch. If this is the case, you'd need the # TRBU11566 bushing.
    view full answer...

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