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Dexter E-Z Flex Suspension Kit - Double-Eye Springs - Tandem Axle - 8,000 lbs

Dexter E-Z Flex Suspension Kit - Double-Eye Springs - Tandem Axle - 8,000 lbs

Item # K71-653-00
Our Price: $351.81
You Save: $260.13
Trailer Leaf Spring Suspension
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Shipping Weight: 28 lbs
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Replace your standard equalizers with these shock-absorbing E-Z Flex units to get a smooth ride for your tandem-axle trailer. Equalizers with rubber cores absorb road shock for a smooth ride. Heavy-duty shackle straps ensure strength. Great Prices for the best trailer leaf spring suspension from Dexter. Dexter E-Z Flex Suspension Kit - Double-Eye Springs - Tandem Axle - 8,000 lbs part number K71-653-00 can be ordered online at or call 1-800-940-8924 for expert service.
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Dexter Trailer Leaf Spring Suspension - K71-653-00

  • Boat Trailer
  • Camper
  • Car Hauler
  • Snowmobile Trailer
  • Utility Trailer
  • Equalizer Upgrade Kit
  • Double Eye Springs
  • 7-3/4 Inch Long
  • Tandem Axle
  • Dexter

Replace your standard equalizers with these shock-absorbing E-Z Flex units to get a smooth ride for your tandem-axle trailer. Equalizers with rubber cores absorb road shock for a smooth ride. Heavy-duty shackle straps ensure strength.


  • E-Z flex suspension kit upgrades your equalizers for a smoother ride
  • Cushioned equalizers replace the cast equalizers that come standard on your trailer
    • Rubber core minimizes chucking (back-and-forth movement) and helps to absorb road shock
  • Bronze finish resists corrosion
  • Wet bolts have built-in grease zerks
    • Fast, easy lubrication helps keep moving parts functioning at their best
  • Heavy-duty shackles provide strong hold while allowing suspension to flex
  • Strong steel construction ensures durability
  • Kit includes:
    • 2 E-Z flex equalizer assemblies
    • 8 Shackle strap assemblies - shackle straps with wet bolts
    • 4 Shoulder bolts
    • 2 Press bolts
    • 12 Flange nuts
    • 2 Hex locking nuts


  • Application: tandem-axle trailers with 1-3/4" wide double-eye leaf springs
  • Axle capacity: 8,000 lbs
  • Axle spacing: 35"
  • Equalizer dimensions: 2-7/8" tall
    • 7-11/16" Long from center hole to center hole
  • Shackle strap length: 2-1/4" from center hole to center hole
  • Bolt hole diameter: 9/16"
  • 5-Year limited warranty

Dimensions center to center between bushings

K71-653-00 Dexter Axle Heavy Duty E-Z Flex Suspension Kit - Double-Eye Springs - Tandem Axle - 8,000 lbs

Customer Satisfaction Score:

Customer Reviews

Dexter E-Z Flex Suspension Kit - Double-Eye Springs - Tandem Axle - 8,000 lbs - K71-653-00

Average Customer Rating:  4.8 out of 5 stars   (393 Customer Reviews)

Replace your standard equalizers with these shock-absorbing E-Z Flex units to get a smooth ride for your tandem-axle trailer. Equalizers with rubber cores absorb road shock for a smooth ride. Heavy-duty shackle straps ensure strength.


I installed these on my striping trailer and frequently travel to other states. The trailer rides sooooo much better. The grease zerts and brass bushings keep it from being squeaky. I will put this on any new trailer that I buy.


We broke down on a Saturday near Cincinnati and couldn't find any parts, so I called etrailer and luckily they had a wet bolt kit in stock. They shipped it next day, which means business day, next day, aka Tuesday " thanks UPS ". I had the kit installed by a mobile mechanic and I was back on the road by 3:30pm.


Seems to be working well at taking away the big jolts from the road and giving a much smoother ride to my trailer. Way more substantial than the stock system that came on my trailer. It was about a 6 hour job for me to do myself, from begining to end. That's including getting all my tools ready, cribbing the frame, clean up, etc.
If you have a stock equalizer suspension I highly recommend this product!


Much beefier than previous shackles. Quick shipping and prompt arrival. Installation went smooth. Two phone calls to customer service, 2nd asking for proper parts. Not etrailers fault. I needed longer eye bolts after disassembly. Customer service we more than helpful both phone calls. I ended up having to order parts from a different website. Not a really big deal. Great experience as usual.


As a learning curve installing these. I made a tool to install bushings and found an air hammer made it very easy. Broke one trying to pound it with hammer. Plus had to ream out spring eye to make more round so bushing fit better. Other than that, worked well. Another hint is when you grease the pins, jack up trailer. I have a power greaser and could not get a couple to take grease. I lifted trailer and they all worked fine.

Good, no problems. Only difficulty is in greasing the pins, it is very hard to impossible to grease some of them but if you hack up the trailer by the frame, is piece of cake
Russ - 11/11/2022


Really liked the kit as soon as I opened the box. Well made,& much beefier than stock. Went together pretty easy. Probably spent the most time figuring-out where to put the jacks. My bushings were completely worn-out, so I did have a bit of an alignment issue. That was completely on me. Due yourself a favor and don't wait too long like I did.

The results were very noticeable the first trip out. Took almost all of the slap out of the trailer suspension. Installed this kit on a 2003 Sierra 29f Fifth-Wheel toybox trailer. Primary useDirt Bike Mike is Off Road riding in the SoCal desert.


These items replaced the same items which I had installed years ago. The originals performed great. I needed to replace them due to returning to Wisconsin in the winter from Arizona. This trip happed in 2019. Due to Covid and not traveling, I didn’t perform maintenance. When I began preparing for our trip to Florida, the grease serts on the spring ends would not take grease. It required me to cut and grind off some suspension parts and replace them. Completely my fault. The first set worked so well I replaced them with the same set.


I’ve had this setup on the trailer for 1 year, works great and was really impressed on the thickness of the metal on the shackles. Nice being able to grease the bolts as well. Good upgrade highly recommend.


Dexter EZ-flex suspension kit,- Received promptly,watch the videos- very informative. Took about 10 hours for this old, arthritic guy to install. Just came back from a test drive on a particularly rough section of I-78, the difference in the ride is worth the money. Also installed SumoSpring helper springs.


It seems to help with pot holes or large bumps, when I replaced old hanger bushings they were plastic trailer had 6000 miles on it and bushing were almost wore though. Good product buy hanger kit too.


I had morryde LRE suspension system on my 5th wheel and it failed after several emails that I did not get a response to I ordered these, cut off my old suspension and installed these 2 days later i towed my camper 16 hours south and it worked great it eliminated the "bucking"i was experiencing overall way better system I'm very pleased

It is holding up very well
Joshua C - 09/06/2020


It feels much better when towing my trailer and I have a peace of mind that the suspension has been improved from the original. Less porpoising, especially over the local bridges.


The complete shipment arrived on time as usual for However, the label was missing the name of my business and the Owner/Proprietor of the mail service I use was not going to accept the packages for lack of a name. The box number was printed the the name section.

The Owner/ Proprietor is this very small town is the ONLY mail service we have here. So, thinks very powerful by reading every label and wielding her monopolistic power upon everyone. I pleaded with her to let me have package, and she finally agreed, if I would chew your butts for missing the name

Here in this town of [town] Montana we have named her the "Mail Nazi"!

I suggest you be conscience of proper mail labeling.

Otherwise, thank you for your consistent service and prompt customer service!


So far this system has worked out really well. The HD shackles along with the ability to grease all the moving pieces is way better than the stock items. 9000 miles so far this trip


This eliminated the suspension squeak on my 12 year old 5th wheel. All of the plastic bushings were worn through.

Loren K - 10/18/2017


After installing my new E-Z Flex Suspension kit a year ago I have travelled close to 25k with out any problems and it held up even after breaking a leaf spring and then later the leaf spring bracket that is welded to the frame. I am super impressed with this product and wonder why Heartland does not use it when they build there trailers.


These things look beefy as hell compared to online photos. These are WAY better then factory stock. I have them On my Big Tex dump trailer 90sr after snapping my stock ones. I haul small tractors and mowers, deliver stone and soil. Very satisfied with my upgrade.


Really nice upgrade. Night and day difference compared to the one ones and The quickness the bouncing does down makes hauling our fifth wheel not only safer but more comfortable


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.


The E-Trailer team provided an awesome experience. The tools to research what I needed was easy and extensive. The ordering process was easy and my order was shipped and received very fast, thank you. I haven't installed the Dexter E-Z Flex suspension kit yet, but they look as advertised and I'm excited to try them out.


Bought the suspension kit and was ready to install, but ended up taking trailer to pro suspension people. Suspected springs might be bad on one side after closer inspection, and sure enough; all springs had to be replaced. Trailer measured over 1.5inchs different left to right in height.
Trailer now tracks and rides so much better. Thank you!


Product is exactly as described. Very nice compared to the stock junk that was on my trailer. Easy to install looks good too. Can't wait to test drive the ride.


I am so pleased with the performance of this product! I love improving the things I build and take great pride in quality. I was so relieved to have found etrailer. Installation was a breeze and now my home moves with ease. Thanks etrailer!


My order was shipped the same day that I placed it. What a change from other companies. Thanks

I have been using the dexter flex extension kit for a year now on my 2005 basscat boat trailer and the trailer continues to ride the road very smoothly. It’s a big improvement.
John - 11/27/2022


Thanks 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.

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