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When your rear end starts to sag under a heavy trailer or bed load, handling and braking can get sketchy fast. This RoadActive Suspension Custom Leaf Spring Enhancement Kit adds up to 2,000 lbs of support to keep your ride level and steady when towing or hauling. The variable-rated coil tension springs automatically adjust to the load so your suspension stays balanced without bottoming out or pitching forward. You keep even traction at all four wheels and your headlights aimed where they should be.
Factory leaf springs only react after you start to sag or sway. This kit turns them into a mechanically active system that works the moment weight hits the rear axle. The built-in tension springs absorb load force before it causes axle wrap, wheel hop, or body roll. Whether you’re pulling a camper or hauling tools in the bed, the truck stays planted through corners and crosswinds with less bounce and sway.
You don’t have to choose between comfort and control. The RAS design supports heavy weight when needed and backs off when unloaded so the ride feels normal again. The coil tension springs disengage as soon as the bed is empty, letting your leaf springs move freely without stiffening the ride. This setup keeps daily driving comfortable while still being ready for work or towing days.
No drilling, cutting, or welding needed—each unit bolts under the leaf spring using the factory U-bolts. The kit comes fully assembled with all mounting hardware, so it’s straightforward to install with basic hand tools. Once set up, there’s no upkeep or air adjustments to worry about. Just reliable mechanical support that strengthens your suspension every mile down the road.
Heavy hauling means exposure to dirt, water, and salt spray. Every part of this system is built for it with high-grade alloy steel components and epoxy e-coated coil springs. The brackets at each end have a salt spray rating of more than 800 hours for long-term resistance against corrosion and wear. It’s a tough setup that holds up through years of towing and work use without needing maintenance.
Ratings & Reviews
Mike L.
6/23/2026
Nicely done, Sam! Thanks for the photos, we always appreciate those!
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!
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Jim E.
9/11/2019
Still very happy with the Roadmaster System. The truck is more stable and handles better. Highly recommend them.