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Dexter Axle/
Equalizers/
Equalizer Upgrade Kit/
Double Eye Springs/
Tandem AxleItem # K71-653-00
Retail:$402.64
Our Price: $313.95
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Replace your standard equalizers with these shock-absorbing E-Z Flex units to get a smooth ride for your triple-axle trailer. Equalizers with rubber cores absorb road shock for a smooth ride. Heavy-duty shackle straps ensure strength.
Features:
Specs:
Video of Dexter E-Z Flex Suspension Kit - Double-Eye Springs - Tandem Axle - 8,000 lbs
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to be taking a look at the EZ Flex heavy duty rubber suspension system. This system is available for tandem axle applications with part number K71-653-00 and for triple axle applications with part number K71-657-00. It replaces standard trailer equalizers and spring suspensions. This is designed for 1 and 3/4 inch wide double eye leaf springs. It's going to deliver smoother towing when compared to traditional leaf spring suspension systems. It's going to feature this nice rubber core.
This isolates and absorbs damaging road shocks before they hit the trailer frame and the contents of the trailer. The rubber core is going to last a long time and it won't be affected by the elements. It's an easy installation, it does not require welding, cutting or grinding of the trailer frame. It's going to include all of the hardware needed for your installation. The system itself is made from a very strong durable steel construction. It's going to feature a protective finish that's going to keep everything safe from the elements, so you won't have to worry about rust or corrosion.
This system does offer multiple grease zerk fittings for easy maintenance. You'll notice that on all of the bolt heads here on the shackles, we're going to have grease zerk fittings. On the new hardware, this hardware attaches to the other end of the leaf spring that would not attach to the equalizer. It's going to come with your new bushings, your new hardware and each bolt head's going to have a greased zerk fitting on it. Then on the equalizer itself there's going to be 2 greased zerk fittings, so it allows for easy maintenance. This is going to ensure that your set up is always well lubricated and quiet in all the moving components.
It's very easy to apply grease, you just attach a grease gun, pump in the grease, and it's going to lubricate the moving components. This is going to replace Dexter Standard Equalizer 13-122. If your equalizer has that number stamped on it, then this system is going to work great for your trailer. If you can not find a stamped number, or if you have a different brand of equalizer, then you'll want to take a few measurements to verify that this system will fit your application. For instance, your axle spacing must have a separation of 35 inches from the center of one axle to the center of the other. The distance between the lower bolt holes on this system will flex between 7 and 1/4 inches and 8 and 1/4 inches; and the bolt hole diameters are 9/16ths of an inch.
So if the spacing of the holes on your equalizer is between those measurements, and the bolt holes have a diameter of 9/16ths of an inch, then this is going to work for your application. Again, those bolt holes that we're measuring from is from the center of this one to the center of this one, those lower holes on your equalizer. The shackles themselves, these are included, all the shackles necessary. These are going to have a length measurement from the center of bolt hole to the center of the other bolt hole, of 2 and 1/4 inches. These are designed for axles that have a capacity up to 8,000 pounds. That's 8,000 pounds per axle. I went ahead and assembled it just to show you what it's going to look like and give you a good idea how it works. We'll go over all the components that it comes with. It's going to come with these bolts right here, again, these are going to attach to the other end of the spring that does not attach to the equalizer. Comes with the bolts, the new bushings and the new nuts to get those installed. You're also going to get all of the necessary shackle straps and the hardware necessary to attach to the equalizer and to your leaf spring. Again, it's going to come with the new bushings, those would go in the eye of the spring, and it's going to come with the bolts pre-installed in the shackle. You'll need to put this shackle on, put the bolts through and then tighten all of the hardware. I do want to mention that these bolts have the splines on them, so that means that these bolts will have to be driven into the mounting location. Also here, it's going to come with the new center bolt, this is for the equalizer to be suspended from the center hanger. That's also got the splines on it, that will need to be driven into the location as well. It's going to come with a new nut to get all of that installed also. Really nice design, and again, it's got all of the zerk fittings on it, which is going to allow for easy maintenance. It's going to keep all of those moving components well lubricated, which is going to benefit when it comes to having a quieter system. That's going to do it for today's look at the EZ Flex Heavy Duty rubber suspension system.
Average Customer Rating: 4.7 out of 5 stars (145 Customer Reviews)
Replace your standard equalizers with these shock-absorbing E-Z Flex units to get a smooth ride for your triple-axle trailer. Equalizers with rubber cores absorb road shock for a smooth ride. Heavy-duty shackle straps ensure strength.
This is for people that USE a trailer. If you replace shackle links and equalizers once a year, this is for you. Mine showed up with some spring eye bushings missing, so the packing could be improved. Surprisingly, they wouldn't send me replacements or sell them separately. I ordered them from another vendor and installed the kit. Grease it every now and again and no wear to the pins or shackles so far. Well worth the money if your trailer is on the road every day. 496077
Still as good as new. I would say it would be nice if the trailer didnt have [] axles because the equalizer is very close to the ground, but I have only dragged it hard once and it didnt hurt it that I can tell. Highly recommended if you daily your trailer.
William - 04/13/2019Good direct replacement product with grease fittings on all pins. 423945
Installed on my wife's 2-horse gooseneck trailer with living quarters, along with flip kit for axle to raise trailer for leveling with higher truck. My wife believes the ride was much smoother for the horses based on less anxiety in horse's demeanor when unloading after trip. 315247
etrailer is probably the best one stop trailer solution on the web. I just fabricated my own deck over dovetail tailed from scratch. I ordered just about everything I needed for the build. The sales staff are very knowledgeable and professional. I highly recommend etrialer to anyone weather your rebuilding your trailer or fabricating a new trailer, they pretty much have everything your looking for with very good pricing and they stand behind every product they sell. 359320
Just installed, no road test yet. Product appears well made and heavy duty, Dexters packaging could have been better, some of the plating was worn or scratched off of the equilizers, cosmetic only. Shipping was prompt and complete. 156609
Haven't installed yet but looks like a quality part wish they would send the heavy duty shackles for the other ends of the springs. Everything is now heavy duty except for the ends if the springs that attach to the trailer frame rails. 235522
These are a huge improvement over the cheap plastic bushings that come installed on the new campers. 444156
The Dexter Axle Suspension was holding up very well and the trailer rode much better. I would highly recommend.
Pete - 10/19/2018The staff was very prompt and courteous. I received the product within three working days and am very satisfied with the etrailer service and the product. High quality and has made a world of difference with the quality I feel while towing my FZ322 toy hauler loaded or empty. Much heavier system that rides smoother and more quiet than the manufacturers suspension. 454958
Perfectly much improved ride. With the grease fittings and heavy duty construction and regular maintenance approximately every 5,000 miles there isn’t any evidence of wear in the shackles or pins. Well worth the money spent.
James H - 11/30/2018Great product ! Trailer tracks better now , so tire life is better,, going to order another suspension kit for another trailer I own. It is so nice being able to grease all the pins to make them last longer. Great company to deal with.. 432022
Suspension is working great. Being able to grease the moving joints is a real plus. Will be buying more Kits for other trailers I own.
tomcat - 09/13/2018This is an excellent upgrade for any trailer suspension. The bushings in mine were worn out so it was time for a rebuild. All the parts are first class and everything fit together perfect. Don't get in a rush and allow yourself plenty of time. The improvement in the ride was noticeable right away on our first trip of 400 miles...and it was a joy. This rebuild was done on a 1997 Alpenlite 34' fifth wheel 538869
This eliminated the suspension squeak on my 12 year old 5th wheel. All of the plastic bushings were worn through. 308216
Great
Loren K - 10/18/2017Thanks to Jessie @ e-trailer i received my order in a prompt and secure method. Although I have not begun the assembly yet because of weather conditions, I did inspect all the parts received and as per my previous experience with e-trailer they were right on. Install will be a breeze. 564250
This is probably one of the best products you can buy when fixing up a trailer where everything is egged out and wasted. Bear in mind that all spring hangers need to have the same dimesnsion from the bottom of the frame to the center of the holes. I didn't know this until the instructions revealed that. If your center hanger is tall, and end hangers are short, your springs will sit at an angle. So, provided all your hangers are the same, it's a quick swap. If they don't match, there will be welding required as well as a bunch of measuring and fabrication. 315219
Great product. As an industrial designer (retired), ...kept the machine shop, I dread the quality of pretty much everything I order. Sure, one bronze bushing needed to be pressed in further and a nut was missing due to UPS's classic handling, but the end product can only be described as 'OVERKILL'. Thanks for saving one very poorly designed Lamar dump load trailer ...requiring an axle flip to have any suspension travel at all. 561493
Great service, questions answered promptly and accurately, package arrived before the promised time. I had no problems installing the product as the fitment was exact thanks to etrailer product recommendation. Installation of this item should be done by an accomplished mechanic and in a well equipped shop. My 5th wheel is 32' long and the installation requires at least 3 jacks to lift the trailer and axles and to manuver the axle height in order to install the pivot bolts. Product smoothed out ride to some degree but the reason for my installation was due to worn out bushings which made a click/pop noise while driving over uneven surfaces. 234675
Delivery was as promised and all parts were there. Great service. Raised 5th wheel 4 3/4 inches so it would be level when hooked up to 2016 Ram 2500. 350389
Received yesterday, installed yesterday, first trip today. I am very pleased. 353541
I purchased this to replace the worn EZ Flex suspension on our 2011 Heartland Bighorn. The original EZ Flex was not a wet bolt, so I figured this was a good upgrade. I have read that Dexter had a bad batch of equalizer rubber and ours was definitely evident of that. The bumper material had completely collapsed and cracked such that the equalizers were hitting metal-to-metal. The nylon bushings and bolts were in good shape but the bronze bushings in the equalizers were worn through on the inner edges. We have towed our 5th wheel about 20,000 miles, coast-to-coast. I was surprised at the wear seen. Installation went well with one broken bronze spring bushing requiring a reorder. The rest of the installation worked well. I used two bottle jacks (20 ton for frame, 6 ton for one axle) and a floor jack for the second axle. A C-Clamp came in handy to center the spring on the bracket for bolt installation. 3-4 pumps of grease for each of the fittings. We'll see if it helps in a couple of weeks on Michigan spring roads. 491247
We have a Sandpiper mid bunk 5er we bought 2 years ago as we upgraded from a travel trailer. As the driver I could immediately tell the improved handling pulling a 5th Wheel over the travel trailer. However, that was the extent of joy going to the fifth wheel. For two years we suffered with a bumpy ride as we towed our camper around the southeast. We began our journey to improve the ride with the Lippert flex air pin box which made a difference, but we were not satisfied. Next we moved from a standard equalizer system to the Dexter Ez Flex and the wet bolts. I will say we also upgraded our tires to the Goodyear endurance’s tires at the same time. Our first trip was 400 miles through some inner city interstates and some smooth interstates. The combination of all three components working together ( the pin box, tires, and dexter Ez flex system) made the ride enjoyable once more. My wife said that it felt like it used to when we towed our travel trailers. Now I will say it took money to get the ride we wanted, but it was worth it for the amount we use and paid for our RV. Please note that you will lose a little ride height moving from a standard equalizer to the dexter. In my case I lost somewhere around an inch based on my best guess, but I did not measure before and after. Overall I’m thrilled with the improvement we noticed. 572609
Wow what an improvement over the last shackles and equalizers I had. I had called mthe business that put on my last shackles and asked them if there was anything better as they only lasted a year and a half. He said no, so I looked on-line myself and found etrailer and talked to their service rep. I ordered the complete package and I was so impressed with the quality. The big thing for me was the grease zerks and the size of the shackles. My brother-in law and I installed these on both sides in about 3 1/2 hours. We spent a lot of time looking for the proper tools to try to make things easier. The second side was done in about and hour. Great product at a good price. 625326
Great product. Easy install. My bushings were gone and suspension squeaks. Now I go through a parking lot with speed bumps and rolls right over them. Also great handling on the highway 605342
Thanks for your excellent service, they have variety of product and excellent prices, we will be buying again with you thanks 588619
Straight forward installation, rugged construction. Been working perfectly since installation, 15,000 plus miles. 563795
Wow! Working with the team at etrailer was great! The parts arrived in a couple of days and went together just like the video showed. Quick road trip after installing the E-Z flex Heavy Duty Rubber Suspension system and four new springs showed tremendous improvement in trailer stability even on some really rough wash boarded roads. Can't wait to get a few thousand miles on the system and then do a recheck. 561028
Excellent - exactly what we were looking for. 553950
Great product and super fast shipping. These should come on every trailer made. I have them on my 48ft triple axle enclosed. along with my 20 ft enclosed. 369771
excellent product, a must for replacing original suspension. 357877
Weigh Safe Hitch had issue with first one but etrailer was on top of getting another out to me also purchased Dexter suspension kit ; after a slow starte got kit installed on my 20' trailer looks good and seems to work. Fast delivery also Etrailer take good care of their customers 334933
Replaced worn out stock suspension with this product and noticed quieter ride immediately. Installed my self in about three hours. I pull a trailer five days a week and will put this product on any trailer I have in the future. Very pleased Thanks Dexter Axle 299506
Product worked as intended. The surge was reduced pulling the trailer. Some of the bolts must have moved, cause I am having trouble greasing 2-3. Found I could change all shackle bolts and the e-z ride at the same time by using stands to hold the trailer up. 293776
The parts were correct fit properly and the service was great I will be using this company from now on. Thanks etrailer 260821
All bolts took grease. This kit is extremely beefy. Perfect for a refresh on any trailer. 238853
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
The things that separate etrailer from everyone 1.Price-always lower than anyone...2.Selection-always have what I need or will get it for me...3.Videos-show the product and what it is...4-Installation Help-Have videos and great tech staff on hand..5-Shipping-free and fast,let me know when its coming...6-easy to use website that makes shopping a breeze.. Want to improve? ? Pre-screen videos by others and only include those that are correct and helpful then pin onto your site for that product!!!! I I usually look at your vids and then on internet to get a good prospective about what I am getting ready to do . Measure twice cut once....Would save me time from scrolling through bad vids !!!!!! 599592
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
Great product!!! I installed the the kit on a travel trailer just before a 7500 mile trip around the country!!!! Installation was straight forward and the product preforms great !!!!! 478451
Product is preforming great no problems so far !! Would definitely recommend this upgrade!!!
Ronnie - 02/25/2019Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
The installation is pretty straight forward, however with the trailer weigh and spring strengths it was quiet a lot of work. I have air tools and jacks to work with and it took about six hours. Didn't realize how bad my bushing were worn until it was apart. Camper is a 2013 with about 15000 miles and the plastic bushing were considerably worn. With E-Z flex installed, all the creaking noise is gone, tows a lot smother, still some chucking, but well worth the money and time. Great product and great service from etrailer. Thanks 267849
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
Would have loved to write a great review as the product appears to be well built and I like the ability to lube all the spring shackles. Unfortunately one of the bolt patterns does not fit my trailer. It would help if ALL the bolt hole measurements would be displayed in one place - so that you would know prior to ordering if things would fit. 234003
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
Ordered on Sunday it arrived on Friday and installed on Saturday went in easy, hardest part of this job is jack up the trailer. I used two jacks and lots of wooden blocks . All parts fit perfectly every thing was there no complaints. Going on the road next weekend to test the ride of my trailer, hope this will fix my rough riding trailer. It took me 5 hours to install this kit and adjust my brakes , I'm 60 years old so you can do this yourself 570169
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
I've not actually towed on this product yet as I only just installed it. The product is solid and easy to fit with clear instructions that make installation easy. I chose to replace the leaf springs at the same time. Like others have mentioned in reviews, the packing isn't just terrible, it is completely absent. The heavy contents are just tossed in a box and while that is bad enough, it presents a significant risk to the grease fittings on the EZ-Flex unit. Dexter (not etrailer) need to get that sorted out. I'd have given 5* if it wasn't for that issue. 565951
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
So far so good. Survived the first 1000 miles since installation without any problems. The wet bolt system has quieted the suspension on the trailer considerably. No more low speed squeaks/squeals or groaning from suspension flex in tight turns and bumpy roads. The hard rubber baby buggy bumper pads between the opposing arms are holding up well and do absorb some of the road hazard shock rather than transferring the impact directly to the trailer frame and contents. Really big bumps still rearrange the contents in the back of the trailer, but everything rides nice otherwise. 385807
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
I think they will be great. They are installed and I will be traveling soon on the new suspension. Thank you etrailer for youyr good products RV manufacturers are totally missing the boat and have absolutely no regard to quality in regards to the cheap suspension parts they put into these trailers. It just does not make any sense to put such cheap bushings. As far as I am concerned the whole RV manufacturing industry are very inconsiderate of there retail customers. 229233
Smooth ride
Larry M - 10/04/2016Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
Replacement of original 10 year old equalizers was fairly easy except for the old bushings in the springs, it took a lot of beating. Did not follow the instructions to remove axles, did 1 side at a time. I did replace the straight grease zerks and installed 90 deg zerks, instructions said the zerks were 1/4 28 thread, that is wrong they are 6mm 100 pitch thread. Great product will be ordering more parts soon. 556086
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
I installed this Dexter E-Z Flex om my Keystone Cougar in about 5.5 hours in my driveway. I also installed the complete wet-bolt kit at the same time. I have taken many trips since installing this, including a trip from Cali to Yellowstone and back, and I have to say the quality of the ride has improves so much that it is near perfect! The rough roads and pothole are handled so much easier and I have less fatigue at the end of each days drive. Getting under the rig to lube these has been very easy and keeps things smooth and quiet. Do this upgrade! You won't be disappointed! 323299
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
I put this set-up on both my tandem boat trailer and a 7,000# enclosed construction trailer. Prio to the boat trailer was experiencing a blow-out virtually every other trip. Thought I had a tire problem. After rebuilding the suspension system... Blow-outs are a thing of the past. Trailer tracks extremely well in curves at high speeds. On the construction trailer I had a spring eye bolt fall out after installing this kit. I have no idea how or why but I always give the trailer a look over any time I stop. Did a mcGyver to get it back to the shop where I installed a standard suspension bolt. Been going that way ever since... 269088
Some of the wet bolts dont lube well at all. But that was the case when new. Otherwise, all is good on both trailers. Still glad I made the upgrade.
Doug W - 07/07/2017Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
The EZ Flex equalizers did everything as expected. The shipping for this kit was subpar. The hardware was not packaged and all the parts beat each other during the shipping process. Also, there was 2 packets of copper colored grease that got punctured during shipping (due to zero packing/bubble wrap) and that messed up the majority of the instructions. I contacted 3 different people with Etraier (Adam, George and Angela) and neither were apologetic to how I received my package. I did however receive a canned response of "without honest feedback from valued customers like you we would not know where we need to make improvements" and I was expecting just a little more from Etrailer. The level of customer service prior to buying is top notch. I will give them that. 436306
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
We replaced the leaf springs and the equalizers at the same time with products from etrailer.com. The Dexter equalizers were much better than the stock product and easy to install. The leaf springs were exactly the same as those we could purchase locally and at a significantly reduced price. Well done etrailer. 501835
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
I found the hardware so much hardier then the original hardware. I read several articles about replacing the poorly equipped suspension hardware on campers that can leave you stranded and with a long camping trip coming soon I didn't want to take chances with the old suspension components and with the idea that the Dexter E-Z Flex system will help with smoothing the ride is why I went this way. Your sites reviews and installation videos were very helpful. My camper has LCI axles so I had to check through your reviews so make sure the E-Z Flex would work with my axles. I did find my answer and the E-Z Flex fit perfect. The directions that came with the E-Z Flex were only good for the torque settings. Your video was much more helpful. It took me longer then expected, mostly because I should of had heavier jacks and jack stands and had to improvise some. I haven't had the camper out on the road yet so I cannot comment on the ride, but it feels good knowing that I have a really good suspension under the camper now. Overall I am very pleased with the product and with your help selecting and installing it. 368934
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
About as simple a swap as you could expect. Tear off all your old stuff, throw all the new stuff on and voila! A couple of floor jacks, and 2 hrs max. Great time to swap out your junk Chinese wheel bearings too. No major ride change or anything, but at least I know the links aren't going to fail like the OEM ones did. See pic. 285667
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
I was reading about suspension upgrades in an RV newsletter and I decided to check the Dexter EZ Flex out. After reading the reviews and viewing the installation videos on your website, I took some measurements and decided that these would work the best for my 2017, 28ft Pioneer Toy Hauler. It has tandem 4400# Dexter axles and springs and was a direct replacement for the stock equalizers. It took me 4hrs from the time I unpacked the parts to finishing the job. The installation video is right on and that made set up for the job pretty straight forward. Jackstands(4), a couple of 8t bottle jacks, air impact wrench/sockets, torque wrench, combination wrenches, lead hammer, grease gun, anti seize and some cribbing and you will be able to get the job done. The kit and parts are so much more robust than the stock hardware that comes with the trailer and should be much better than what came stock. I will report back once I get some miles on the road and tell you what I think of how it pulls and handles the bumps! 357303
Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
I just opened the box and was disappointed to see that everything was just thrown in the box. Just looking at it it looks like some of the threads are damaged from the way everything is packaged. It will be a while before I will be installing this product. I want to say that the service from etrailers was outstanding!! From fast shipping and great price I couldn't be happier with etrailer. 475693
Installed ez flex on our rv
-- comment by: Jeff - 04/30/2018Review from a similar Dexter Axle E-Z Flex in Trailer Leaf Spring Suspension
After a year and 20,000 miles, this was one of the best upgrades in towing and ride on my 42' fifth wheel. It took out a lot of the small bumps that would open cabinet's and knock things over in the shelves. Another great advantage is the bronze bushings are greasable and do not squeak like the OEM plastic, the OEM bushings had around 3000 miles and we're already worn through, the bronze if kept greased will probably last the life of the trailer. 438995
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