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Equa-Flex Cushioned Equalizers - Double Eye Springs - Tandem Axle - 6K to 8K

Equa-Flex Cushioned Equalizers - Double Eye Springs - Tandem Axle - 6K to 8K

Item # LC279688
Our Price: $307.42
You Save: $114.53
Trailer Leaf Spring Suspension
This item qualifies for Free Shipping
Shipping Weight: 18 lbs
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Product Expert Kathleen M

Is this right for you? Product Expert Kathleen M says:

Yes, if you:

  • Have standard equalizers that just aren't cutting it when going over rough roads
  • Are replacing an equalizer that is 7-1/2" long from the center of each bolt hole

No, if you:

  • Want to have everything you need in one box - it's a good idea to upgrade your shackles and bolts when replacing your equalizers
  • Vary the amount of weight in your rig and need a way to adjust the suspension to you go
These rubberized equalizers replace the standard equalizers on your tandem-axle trailer's double-eye leaf spring suspension. The rubber cores absorb road shock and help reduce chucking for a smooth ride. Sturdy steel construction. Great Prices for the best trailer leaf spring suspension from Lippert. Equa-Flex Cushioned Equalizers - Double Eye Springs - Tandem Axle - 6K to 8K part number LC279688 can be ordered online at or call 1-833-496-1390 for expert service.
  • All Info
  • Reviews (166)
  • Q & A (0)
  • Photos
  • Why etrailer?

Lippert Trailer Leaf Spring Suspension - LC279688

  • Boat Trailer
  • Camper
  • Car Hauler
  • Snow Trailer
  • Utility Trailer
  • Equalizer Upgrade Kit
  • Double Eye Springs
  • 7-1/2 Inch Long
  • Tandem Axle
  • Lippert

These rubberized equalizers replace the standard equalizers on your tandem-axle trailer's double-eye leaf spring suspension. The rubber cores absorb road shock and help reduce chucking for a smooth ride. Sturdy steel construction.


  • Leaf-spring suspension upgrade kit provides a smooth ride for your tandem-axle trailer
  • Cushioned equalizers replace the cast equalizers that came standard on your trailer
    • Rubber cores minimize chucking (back-and-forth movement) and help to absorb road shock
    • Sturdy steel construction with corrosion-resistant, yellow powder coat finish
  • Durable bronze bushings come pre-installed
  • Quick, simple installation
    • Bushings insert into equalizer bolt holes
    • Center hangers (sold separately) suspend equalizers
    • Springs attach to ends of equalizers with bolts and shackle straps (sold separately)


  • Application: tandem-axle trailers with double-eye leaf springs
  • Axle capacity: 6,000 lbs - 8,000 lbs
  • Center and top bolt hole diameters (w/ bushings installed): 9/16"
  • 1-Year limited for equalizers

Lippert 279688 Equa-Flex dimensional diagram

Absorbs Road Shock and Reduces Chucking

Upgrade your trailer's suspension for a smoother ride with these cushioned Equa-Flex equalizers. These units deliver a ride as smooth as you'd get with torsion axles, but at a fraction of the cost. The rubber cores effectively absorb vibrations and bumps and reduce the back-and-forth movement known as chucking. Unlike standard cast equalizers, the Equa-Flex's rubber cores soak up this energy like a sponge instead of transferring it to your trailer and cargo. The result is a more comfortable ride with less wear and tear on your trailer.

Easy Installation

Illustration of a tandem axle trailer suspension system

It's easy to upgrade your trailer's standard suspension with a set of cushioned Equa-Flex equalizers. To begin, insert one bushing into each of the bolt holes on the equalizers. You will need 10 standard suspension bolts and 8 shackle straps (each sold separately) to incorporate the equalizers into your trailer's suspension system. Two of the suspension bolts will be used to suspend the equalizers from the center hangers, and the other 8 bolts will be used with the shackle straps to attach the equalizers to the double-eye leaf springs. If you would like to replace the bolts that attach the springs to your front and rear hangers as well, you will need 4 additional suspension bolts (sold separately).

279688 Lippert Components (LCI) Trailair Equa Flex Rubberized Suspension Enhancement Equalizers for Tandem Trailer Axles - 6,000 lbs to 8,000 lbs Capacity

Replaces 145545

Installation Details LC279688 Installation instructions

Customer Satisfaction Score:

Customer Reviews

Equa-Flex Cushioned Equalizers - Double Eye Springs - Tandem Axle - 6K to 8K - LC279688

Average Customer Rating:  4.7 out of 5 stars   (166 Customer Reviews)

These rubberized equalizers replace the standard equalizers on your tandem-axle trailer's double-eye leaf spring suspension. The rubber cores absorb road shock and help reduce chucking for a smooth ride. Sturdy steel construction.


These will be going back. Lippert did a terrible job prepping these for shipment. They showed up with evidence of metallic grinding, dropping, and less than a quality piece. The bubble wrap that was around the pieces wouldn’t protect a Christmas ornament from the dollar tree. Definitely not going on my trailer like this.

Customer Service will reach out to you.
-- Etrailer Expert Sierra K - 12/02/2021


These units provide an excellent ride and stability for any tandem trailer. Highly recommended and well worth the money.


I bought these to replace the worn-out ones I had on my trailer. It was approximately two hours install per side. I purchased all new standard bolts with never fail bushings along with all new straps. I was told I could replace the brass bushings with never fail bushings when I purchased the set. When I received equa-flex equalizers I noticed they all had pressed in brass bushings so I was not able to use the never fail bushings. I had to go down to the local trailer store to to purchase six wet bolts. All in all I am happy I just have six extra bolts and six extra never fail bushings.


Have only put about 3500 miles on these replacement equalizers but they appear to be getting the job done. I'm a little surprised at how much the rubber bushing portion is already compressed but will see long term. The order from etrailer was handled correctly and timely. Happy with the company.

by: 02/12/2021

Excellent product. These a a big upgrade from the stock. Thanks to Bob and the crew for installing these. See the video of the installation.

Works great. Smooth ride. Would use again.
Frank H - 02/14/2022


Very easy install—removed wheel on rear axle and plenary of area to work. Reused hangers and bolts. Installed in about 90 minutes. Looking forward to seeing the difference in handling


Easy to install, soft brake action eliminated the pivot flip. Highly recommend them. Buy the grease zert bolts and zero issues for as long as you own the trailer


Received the equalizer a little after lunch today. Had the passenger side of the trailer done in about an hour after some choice words getting the old one off. Putting this in was simple, and should make a good ride and stop wearing my tire out.


Worked great. Good replacement for the originale that where worn out


Seems to help with the ride. I would buy them again

Works well , greatly reduces the road jarring for a smother ride both in the trailer and the pickup
Steven M - 10/06/2022


Very good service and nice to talk to someone that understands and knows the business end of parts


After 10 years of wear and tear it was time to replace my equaflex system. As always etrailer staff was very helpful getting me the correct replacement parts and any upgrade parts I had questions about. Shipping was fast and the package came in damage free. Installation was a breeze and straight forward. I also added wet bolts to the spring hangers and shackles. A very good upgrade for most RV suspensions. Very satisfied customer and etrailer is definitely my go-to company.

1 year after installing and roughly 18,000 miles everything is working great. No sign of wear. Great product. Definitely recommend this upgrade for those that have the stock equalizers.
Alfred M - 10/21/2019


Fast shipping and installed easy, had trailer completely lifted which helped in attaching shackles to equalizer.


so far so good


I upgraded to the 6-8000 lbs. Equlizers on my 2014 Redwood fifth wheel .
I have had 2 leaf springs break within 2 months . I did some reasearch and found an issue with the shackle bushings failing so I also went with the heavy duty wet bolt kit.
Included is a video of the equlizers doing their job.


These were a direct replacement for my existing Equa-flex brackets on my fifth wheel RV. The originals lasted six years and needed bushings and rubber cushions were showing their age. I was able to purchase a set of these that had been returned for damage to paint. They came to me in the condition described by customer service rep. Good job as always etrailer! I also replaced the rest of bushings/bolts with a Never Fail kit I'd purchased earlier. That part of the repair was more difficult. The plastic bushings are difficult to fit in the spring eye and the threads on the bolts and nuts can strip easily if you're not careful.


Have a 30' toy hauler and first added Sumo shocks which made a difference but after adding these Equa - Flex cushioned equalizers what a BIG change in the ride and towing. E trailer shipping was very fast and they were very easy to install . To me this is a must for people with an RV.


Quick shipping. Poor packaging from Lippert. Items banged up and chipped powder coating. Still usable


Just to say shipping was great and fast, install took place several days later and that went very well also. Plans are to try out the new install in the coming weeks, I see no problems, very satisfied from cost to install even with age and fiscal handicaps.
Thanks etrailer for appears to be a solid design product. I would recommend this product over a flex design after 4 years needed replacement.


Replaced original equaflex units with these, very nice!


The product is amazing; however, the kit didn’t come with the Stover Nuts to put it all together. I’ve had the kit for a year and just installed it last weekend and noticed it came with no nuts.???? And trying to find 7/16 x 20 Stover Nuts is almost impossible...but I did. I would recommend a little better quality control on the items required to be in the box. I no longer need them since I’ve already purchased them from another source.


Great service and follow up


To Whom It May Concern;
I received
my order in a quick timely manor and the sales person Adrianna was great and friendly and offered to keep track of my order so there wouldn't be any problems.. I would recommend your company and your price for this product is cheaper than [online retailer].. I hvent had a chance to have it installed yet so no pix to send.

Thank you,
Mike Duncan
Gallatin , Tn


Usual great packing job by etrailer for heavy items.


Fast Free shipping arrived as stated. Best price. Replaced 10 year old Equa Flex. The rubber was cracked and compressed. Installation was simple. Came with bronze bushings. The Box it came in had other items and was very heavy causing the box to break down.

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