Lippert Equa-Flex Rubberized Equalizer Tandem Axle Kit for Double-Eye Leaf Springs and 4,000 to 6,000-lb. Weight Capacity - 279687

I have a dual axle 6500lbs travel trailer. It came with a standard Y Equalizer and plastic bushings. Combined the Lippert Equa-Flex with a new bronze bushing and wet bolt kit. Install took about 4 hours. The hardest part was getting the old bolts off the hangars followed by squeezing the new bronze bushings in. The Equa-Flex comes with cheap plastic bushings and quite frankly you'd have to be an idiot to go through all the trouble of paying for the Equa-Flex upgrade and not also upgrade the bushings. There original plastic bushings on my equalizers were cracked and worn in one season of use (2500 miles). Regardless, the Equa-Flex difference is immediately noticeable once towing. No more thudding or that clunking feeling through the frame from the weight shifting pulling away or bumpy roads. Way smoother ride on the highway or around town. Expansion joints are so much smoother now. My next trailer will have this on at the dealer or I'm not buying it. Should be OEM on all dual and triple axle TTs!

Good quality

These work as perfect replacements for the originals

I highly recommend these for a smoother ride on your trailer. Relatively simple to install. You will notice the difference right away. No more rattling in the hitch while towing, and that back-bounce in the tow vehicle. And RR tracks are so much smoother!

What a significant improvement in handling after install. Paired with new wet bolts and beefy shackles, these will outlast the trailer. A c-clamp was instrumental for the installation since it was essentially a press for the new sleeves and wet bolts.

These spring leaf equalizers took a lot of the bucking out of my fifth wheel while towing.

I installed the 4k-6k Equa-flex along with the MorRyde Wet Bolt Shackle Upgrade kit on my Outback 27RLS travel trailer (8K GVWR). This was the proper kit for my tandem axles, each having a weight rating of 5K. Now that it is complete, I am happy with the ride improvement of the trailer, which is much improved over the standard suspension with just a straight equalizer. I did the installation myself in my driveway, doing one side at a time, using two jackstands, a bottle jack for jacking the frame to place the stands, and two bottle jacks for the axles. Installation was a fairly big job, but the hardest part was not getting the old bolts and nuts off; it was setting the last bolt to attach the second leaf spring to the Equa-flex equalizer arm. I used PB Blaster to soak the old nuts overnight, then used an electric impact wrench which made short work of the rusty nuts, so removal of old hardware was pretty easy. Likewise, getting the new bronze bushings and new bolts in was pretty easy except for the final bolt. The problem is that the spring eyes don't match up perfectly with the Equa-Flex if you are replacing the standard 13-104 equalizer and keeping the same shackle length. The directions don't tell you this, and make it seem like the installation is very straightforward. I had to use a crowbar, a prybar, and a couple of wooden blocks to deflect the springs enough to get that last bolt in. No amount of axle jacking would result in the right amount of deflection and height to get the last spring eye to line up with the Equa-flex arm. I really wish the directions would have been more detailed and hadn't left it to me to figure out how to make the installation work. In the end, however, I did it and am happy with the final result.

All leaf spring trailers should have these.

Did my research and my 6500 lbs RV trailer fully loaded tandem axle, this is my choice. I also added shocks and new leaf springs and new leaf shackles, since my trailer has over 13,000 miles on it. (9years old) The complete combo is hands down incredible smoother ride from inside my truck towing trailer feels like I’m towing lighter trailer.

Easy to install

Well built product but not enough info in the description as to which wheelbase this fits. Measurements of distances between the anchor points should be added to the images to provide more details.

The instructions were easy to follow but still detailed. The parts were of great quality & the installation was straightforward. I would recommend this product.

I had Equa Flex equalizers when I bought my 5th wheel trailer. After 8 years and many miles I replaced the equalizers with Equa Flex. They fit like a glove even though they have been upgraded.