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When you drop a heavy trailer on the hitch or load the bed with gear, the back end can sag and throw off your steering and braking. This RoadActive Suspension kit adds up to 2,000 lbs of support by converting your leaf springs into a mechanically active suspension system. It keeps the ride level from front to back, improving traction while braking and accelerating, and eliminates bottoming out so your setup stays stable and predictable no matter what you’re hauling.
You don’t have to choose between comfort and control. The variable-rated coil tension springs automatically adjust to your load—activating instantly when weight is added and disengaging when unloaded. That means steady support when towing and a smooth ride when empty. The system strengthens your leaf springs for better handling and stability without making the unloaded ride harsh or stiff.
Body roll in corners or sway from crosswinds can make towing stressful. This system reinforces your factory leaf springs to stop sway before it starts. It reduces body roll, eliminates axle wrap, and prevents wheel hop by keeping the springs in their proper bowed position. The result is a more planted feel through turns, smoother driving in wind or traffic, and less strain on suspension parts.
Installation is straightforward—no drilling, cutting, or welding required. Each unit comes fully assembled with corrosion-resistant, epoxy e-coated steel components and brackets rated for more than 800 hours of salt spray protection. Once installed, there’s no need for maintenance or adjustments. Just bolt it on, set your spring tension during install if needed, and enjoy consistent suspension performance every time you tow or haul.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today, we're going to take a look at the Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit. Now this is a custom fit part. It is designed to fit the 1974 to 1982 Chevrolet Blazer 1983 to 1994 Chevrolet Blazer full-size and the 1974 to 1994 GMC Jimmy. Now this is a. And on a custom fit part like this, I always like to recommend for you to go to the website, use our fit guide. Put in your year and model vehicle it'll show if this'll work for your application.
Now, this is a custom kit that'll convert your vehicle's factory leaf springs into a mechanically active suspension system. It'll actively strengthen your leaf springs for improved ride quality with or without a load. And it is an easy bolt on installation. There's no drilling, cutting or welding required. Basically the unit they send right here will secure on top of the leaf spring, and then on this under the U-bolt plate.
It is a fully assembled kit and hardware's all included, even nice set of detailed instructions.This is an all-in-one suspension system that will improve stability, handling and control. It'll eliminate any axle wrap, wheel hop and bottoming out, reduces dangerous sway and body roll when you're cornering and it'll keep your ride level when towing or hauling a heavy load. It will even improve your traction while you're breaking and accelerating. They do use the variable rate coil tension springs, which will automatically adjust to your vehicles load. They'll activate immediately to support the extra weight and they'll disengage when they're unloaded, allowing your leaf springs to perform as intended.
They are a customizable coil spring. They can be adjusted to your vehicle during installation to accommodate your towing or hauling needs. These will help extend the life of your leaf springs, your shock absorber, shackles, and even your tires.They use durable epoxy coated steel construction on each end. They use these corrosion resistant brackets on each end of the unit. They have a nice salt spray rating of more than 800 hours.
And this kit is maintenance free. There's no adjustments or monitoring needed once they're installed. These are made in the USA. Few specs on this, the weight capacity is 2000 pounds. One note is the Roadmaster Active Suspension Kit will not increase your vehicle's weight carrying capacity. But that should do it for the review on the Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit..
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!