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When you’re towing or hauling and the back end starts to sag, this system steps in. The RoadActive Suspension Custom Leaf Spring Enhancement Kit adds up to 2,000 lbs of support by converting your factory leaf springs into a mechanically active suspension. It instantly reacts to load changes to keep your ride level and your steering and braking steady, without adding harshness when unloaded.
Heavy trailers and bed loads can make your truck sway or lean through turns. Each RAS unit uses variable-rated coil tension springs that automatically adjust to the weight you’re carrying. As the load increases, the system tightens up to stabilize your leaf springs, cutting down on sway and body roll before they even start. You’ll feel more control through curves, crosswinds, and uneven roads.
When the weight piles on, stock springs can twist or flatten out, leading to axle wrap and wheel hop that can shake the whole truck. The RAS system absorbs that force so your leaf springs maintain their shape under load. That means smoother launches, better traction while braking or accelerating, and less strain on suspension components over time.
This custom kit comes fully assembled for easy bolt-on installation—no drilling, cutting, or welding required. Once installed, there’s nothing to monitor or adjust day-to-day. The durable epoxy e-coated steel construction with corrosion-resistant brackets is built to handle real-world use with over 800 hours of salt spray protection. Just bolt it up and let it do its job every time you haul or tow.
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.
William
3/30/2021
Makes the ride a little stiffer but its a truck. Great when pulling my 37 camper. Helps out a lot!!!!
Russell
9/2/2023
OMG!! I have done extensive traveling with my trailer over the last year and the RAS system has made a huge difference in sway, road buffeting and squat. I can’t imagine not having this on any vehicle that tows!
Michael
7/7/2023
Removed the Suspension Enhancement and installed Airlift. Cost more but rear-end isnt sagging 4.
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Mike L.
6/23/2026
Nicely done, Sam! Thanks for the photos, we always appreciate those!