To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Heavy loads can make your rear end sag and your steering go light. The RoadActive Suspension Custom Leaf Spring Enhancement Kit adds up to 2,000 lbs of support to keep your ride level when towing or hauling. Its variable-rated coil tension springs automatically adjust to the weight, activating right away to stabilize the truck, improve traction, and prevent bottoming out or squat under load.
Unlike setups that only react after the truck starts to sag, this system converts your stock leaf springs into a mechanically active suspension. The variable-rated tension springs engage when loaded and disengage when empty, so you get support when you need it and a smooth ride when you don’t. There’s no stiffness or bounce when unloaded, just balanced handling whether you’re towing a trailer or running light.
With a heavy trailer or bed load, sway and body roll can make driving stressful. The RAS kit strengthens your leaf springs to cut down on sway in curves and reduce body roll during turns or crosswinds. It also eliminates axle wrap and wheel hop by absorbing load forces before they reach the suspension. The result is tighter control when accelerating, braking, or cornering with a trailer attached.
This fully assembled kit bolts right onto your factory leaf springs with no drilling, welding, or cutting required. Once installed, it doesn’t need adjustments or air pressure checks—just reliable performance every time you load up. The epoxy e-coated steel construction and corrosion-resistant brackets are built to handle real-world conditions with a salt spray rating of more than 800 hours.
Customer Satisfaction Score:
89% were satisfied with this product
11% of customers were not satisfied
Ratings & Reviews
John
9/14/2026
Well It has not failed me yet. Being basically a spring under load all the time I am assuming the spring will stretch some over time and I will have to adjust tension accordingly. The pickup sits nicely on the thinner washer setting so I am leaving it there and hopefully that will help the system last longer.
Brooke M.
6/25/2025
Looks great, Les :) I hear lots of good this about this option for suspension enhancement and how you said, even without towing it can improve the ride quality. Glad to know that you are happy with them, too! do you have any upcoming camping trips planned?
Gwendolyn Y.
7/23/2025
That's a long trek, so I'm glad these helped you along the way! Do you take that trip often, Elden?
Sergio J.
8/13/2021
What can I say. After a year of constantly driving through Texas roads and highways. I have moved twice and loaded the bed of my truck plus U-Haul 6x12 trailer and thy truck has not felt the load of it. The Active Road Suspension Leaf Spring is constantly sort of speak sensing if theres load so it can actively push it upwards. I have even driven up to the crazy roads of Pennsylvania and my pick drives smoother than when I got it from the dealer. Im telling you these things work. As any cautious driver upkeeping his own vehicle, I have periodically checked the bolts and location of the resistance in between the spring and it has not deflected or moved from its original installation. I believe every pick up must have these. It beats constantly putting air on the air bags especially in inclement weather like up here in Pennsylvania with the snow. I couldnt be more satisfied with this purchase. Thank you etrailer for offering this superb product.
Sergio J.
8/16/2021
Just like when I bought it.
Miguel
7/10/2022
Its been working very well i loaded a couple of times and its awesome
Rick M.
3/27/2022
After a year I am still pleased with this product. I had been adjusting the spring tension higher when towing and then back down after a trailering trip, but now just leave it adjusted to the trailer towing tension as the unloaded ride doesnt seem to suffer when the springs are tighter.
Rich
3/10/2021
Still working great. Towed a Flaggstaff microlite 23LB Travel trailer prob between 5 and 5500 LB’s to Niagra Falls with no problems, truck sat level with trailer and 2 adults,2kids. Getting ready to make a 2,000 mile round trip to disney in florida in a few weeks.
Do you have a question about this Vehicle Suspension?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Mike L.
6/23/2026
Nicely done, Sam! Thanks for the photos, we always appreciate those!