Original (RAS®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2024
$589.00
Price: $589.00
(as of Oct 25, 2025 11:57:53 UTC – Details)
From the brand
Seamless Load & Road Handling
Gain critical strength and stability, when you need. Most popular kits install in as little as 45 minutes and require no readjustments.
Genuine (RAS) RoadActive Suspension HD system is designed to strengthen and stabilize rear leaf springs for trucks carrying heavy loads or towing. Each kit is engineered, manufactured and assembled in North Carolina with a focus on durability, performance, and reliability. Since 1998, RoadActive Suspension has provided solutions that improve stability, reduce squat and sway, and extend the life of leaf springs.
Reduces Squat & Bounce – Strengthens rear leaf springs by up to 50%, providing improved load support and control when towing or hauling—reducing squat by up to 2-3 inches.
Unmatched Ride Quality & Stability – Maintains a smooth, controlled ride whether loaded or unloaded—no stiff suspension like other add-ons.
3-in-1 Suspension Upgrade – Functions as a helper spring, sway bar, and traction bar in a single, cost-effective solution.
No Maintenance. No Adjustments. No Air Lines. – Installs in as little as 45 minutes and begins working immediately with zero upkeep—ideal for drivers who want performance without the hassle.
Proven, Tested, and Built to Last – Designed and tested for heavy-duty use on the road and off. Trusted by hundreds of thousands for its unmatched reliability, safety, and long-term durability.
*NOTE: Does not fit 2022 models with single rear leaf spring suspension, 2015-2018 w/magnaride, OR 2025 GMC/Chevy 1500.
Customers say
Customers find the lift kit easy to install with clear instructions and appreciate its improved handling, particularly in controlling swaying on the highway. The product receives positive feedback for its ride quality, with one customer noting it’s extremely smooth without harshness when not towing. Customers praise its stability, with one mentioning it nearly eliminates dangerous sway, and they appreciate its effectiveness in reducing squat and bounce.
9 reviews for Original (RAS®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2024
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$589.00
Marshall –
Made in the USA quality!
Arrived quickly and came with a sticker! Installed these on my 05 Silverado 1500HD. They were easy to install in a short amount of time with minimal tools. They lifted the truck a good bit in the rear with them on the 40% setting but not complaining because it sits perfectly level. Unloaded ride quality is great, truck rides smooth and handles well in corners and it has less sway than before. Im excited to see what happens when we load up the camper and the car hauler.
Jake From State Farm –
BUY IT.
Put this on a 2020 Silverado 1500 Custom TrailBoss. Double Cab, 4.3, 6L80, 4×4.To preface, all hardware comes loosely installed. I had no missing parts.Itâs worth the money if you donât want to go with helper bags. Itâs a poor manâs overload spring and is worth every penny. No squat.If youâre towing ANY kind of trailer, especially with the trail boss suspension, buy it. If you donât have a sway bar, buy it. If you DO have a sway bar. Buy it.First off, this was extremely easy to install. The instructions were clear and concise. I was done in 30 minutes. Ride quality with no trailer is unaffected (weird, but Iâve put thousands of miles on this truck since install), and the rear ride height was raised by 1â. Even hauling a single axle enclosed trailer, you can tell the difference. Itâs soft when you need it to be. It doesnât squat under load. It does the job itâs intended for, and does it extremely well. I combined this with the Hellwig sway bar kit, and let me tell youâ¦Chevrolet needs to pay attention and take notes.
Todd Holman –
Great product
Easy to install and works great. Towed my rv trailer home and my truck pulled great. Great product, would recommend.
Thomas Winters –
Perfect!!
Just put mine on my 1500 Chevy, install was pretty dang easy. My truck rides great and pulls my trailer much better. Less sway and squatting.
Ctrl+Alt+Del –
Nice improvement in ride quality & handling
Added to Silverado 1500 LT Z71 we plan to use for towing a ~5,000 lb. single axle travel trailer, to minimize squat. Havenât towed yet, but just driving on winding roads the improved ride quality is instantly notable. Body roll is gone. Going through curves feels like itâs locked on to train tracks. Ride is not harsh at all, just quality stiff.
BrettW –
Shocked it works this well.
Picked this up for a 2021 Sierra AT4 to as we were looking into getting a travel trailer. I’m really impressed by both the loaded and unloaded performance.
Joseph –
Small issues but worth the hiccups for the performance gains!
I installed this for trailering my walkaround boat (roughly 6500lbs package weight with a full tank of gas and loaded for a long day of fishing), this helper suspension package has transformed my truck.Before my trailer would noticeably squat my pickup, but now it barely sits down at all with everything hooked up!The installation wasnât super easy, but it was straightforward. Cranking/stretching the spring to the appropriate tension was the worst part, it took quite a bit of force and then the hex-headed end of the bolts actually broke from the force (the bolt head is a female hex around 1/2â, but then has a male-to-male insert epoxied in the hole, and the epoxy separated on both sides but didnât stop the installation from being completed).Everything fit my truck perfectly (2014 Sierra 1500 4×4).Performance-wise this has transformed my trailering experience and daily driving, the truck rides more comfortably and handles like a dream either empty or fully loaded down!I am a bit hesitant on the long-term durability though, as the same spring-tensioning bolts mentioned earlier are already showing signs of surface rust. It looks like theyâre made of iron, and have turned orange in only a few months. I plan on cleaning them up and spraying a protective coating on them since my installation is complete and should not need adjustment anytime soon. The corrosion does not seem to be an issue right now as itâs just surface rust and not structural, though for the price paid Iâd have thought there wouldnât be any signs of deterioration in the few months Iâve had them installed.Even with the issues Iâve found, Iâd still say theyâre worth the price if youâre going to be pulling a 1 ton or heavier trailer with a 1/2 ton pickup truck, or loading the bed 75% of its rated weight capacity.Would buy again!
Amazon Customer –
Great Product – Highly Recommend
I had these installed on my 2015 Chevy Silverado and couldn’t be happier with them. It helped the sag on the rear of the truck when towing. I tow around 5,000 lbs or under usually but these have really help with the sag and also the control of the truck and trailer. Seems like the truck absorbs bumps and really feels stable around the curves. I used the 2mm setting and the bed does sit a little higher when there is no load. I don’t mind it as I think it looks better that way with my level kit anyway. Great product!
Darren Lakusta –
RAS has been installed, so far everything is excellent. No more air bag hassles. RAS is maintenance free.