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When towing or hauling, rear-end sag can throw handling and braking off balance. This RoadActive Suspension kit adds 2,000 lbs of support by converting your factory leaf springs into a mechanically active suspension system. The variable-rated coil tension springs automatically adjust to your load to keep the truck level, eliminate squat, and maintain traction while braking or accelerating. With the ride leveled from front to back, steering feels more confident and headlights stay properly aimed even when you’re towing or carrying heavy gear.

Curves, crosswinds, and passing trucks can make a loaded vehicle feel loose and unstable. This system strengthens your leaf springs to resist that motion, reducing body roll and sway before they start. The active spring design stabilizes the rear of the vehicle so it stays firm through turns and highway gusts. Whether hauling a camper, trailer, or tools, you’ll notice steadier handling and fewer rocking motions on the road.
Heavy loads can flatten out factory leaf springs, leading to bottoming out and wheel hop. The RAS kit reacts immediately under weight to absorb force before it hits the axle. By keeping the leaf springs bowed in their working position, it prevents axle wrap and wheel hop for smoother traction and less stress on shocks, shackles, and tires. That means better control when accelerating or braking with a load on board.

Installation is straightforward with no drilling, cutting, or welding required. Each unit bolts under the leaf spring using your existing U-bolts and comes fully assembled with hardware included. Once installed, no adjustments or maintenance are needed—the system automatically engages under load and releases when unloaded for a normal ride feel. Durable epoxy e-coated steel construction and corrosion-resistant brackets with a salt spray rating of more than 800 hours ensure long-term reliability in all conditions.


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everybody, Andy here with etrailer.com, and today, we're gonna take a look at this RoadActive Suspension Custom Leaf Spring Enhancement Kit. Now, this is a custom fit kit that is designed to fit the 1986 to 1995 Toyota pickups, and then your 1993 to 1998 Toyota T100 pickups, and then the 1995 to 1997 Toyota Tacoma, and then finally, the 1998 to 2004 Toyota Tacoma excluding PreRunner. So to confirm that this kit's gonna work for you, take advantage of our vehicle fit guide here at etrailer.com, input the year, make, and model of your vehicle, and our fit guide will let you know if this will work for you or if we have something comparable that will work for you. Now, as you probably know, when towing or hauling a heavy load, you may encounter a number of problems that can make your driving experience difficult or dangerous, such as sway, body roll, or bottoming out. So when your vehicle is weighted down, your factory leaf springs can't counteract these problems to the extent that they are supposed to. The weight will overpower your leaf springs and cause them to twist or flatten out, and when that happens, they cannot support, level, or stabilize your vehicle effectively.
Additionally, because your factory leaf springs are passive, they won't begin to tackle problems, such as sway, until those problems have already started. So this kit will convert your existing vehicle factory leaf springs into a mechanically active suspension system. It will actively strengthen the leaf springs for improved ride quality with or without a load. And this all-in-one suspension system will improve stability, handling, and control, it will eliminate axle wrap, wheel hop, bottoming out, and it will reduce dangerous sway and body roll when you are cornering, and it will even keep your ride level when you're towing or hauling a heavy load, improving traction while braking and accelerating. It does use the variable rated coil tension springs, which will automatically adjust your vehicle's load, they actively and immediately support the extra weight and they'll disengage when unloaded, allowing your leaf springs to perform as intended.
They can be adjusted during installation to accommodate your towing or hauling needs, and they are independently adjustable for side to side leveling of any off center loads. So these will help extend the life of your current leaf springs, your current shock absorbers, shackles, and even your tires. Now, these springs are made here in the USA, they are constructed of a durable epoxy e-coated steel, so these are very durable, and the corrosion-resistant brackets on the ends of each of the units have a salt spray rating of more than 800 hours. So this is going to be an easy bolt-on installation. What's great about these is there's not gonna be any drilling, cutting, or welding required.
This eye bracket will wrap around the top of the factory leaf spring eye, and then the unit will secure under the leaf spring and around the factory U-bolts. Now, you're going to receive these as you see them, they're going to be fully assembled and hardware's included, and these are maintenance free, adjustments and monitoring aren't needed once they are installed. The weight capacity is 2,000 pounds. However, I do wanna point out that this kit will not increase your vehicle's weight carrying capacity. Instructions are included to walk you through the very easy installation process, and that's gonna conclude our look today.
I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.
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!
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Mike L.
6/23/2026
Nicely done, Sam! Thanks for the photos, we always appreciate those!