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Big loads can make your rear end sag and throw off handling. These Hellwig EZ-990 Helper Springs add up to 2,000 lbs of load-leveling capacity above your factory leaf springs to keep your truck sitting even when towing or hauling light loads. By taking stress off your stock suspension, they help maintain steering control, braking stability, and tire life no matter what’s in the back.

Hauling shouldn’t mean a rough ride. The EZ-990 springs flex with your factory leaf pack to limit bounce and sway while keeping the rear stable under weight. Each side can be adjusted independently using the included U-bolts, so you can fine-tune tension for uneven or off-center loads. Once set up, you get solid stability and a more predictable ride through bumps and turns.
This kit is built for straightforward DIY installation. The step-bracket style mounts above your factory leaf springs and avoids contact with existing hardware. Everything bolts on with the included mounting hardware—no complicated fabrication needed. It’s a clean design that fits right over your existing setup so you can get back to towing or hauling faster.
The EZ-990 Helper Springs are made from durable steel for consistent performance under load. Their silver vein hammer-tone powder coat finish helps resist corrosion for the long haul. Once installed, they deliver reliable suspension support year after year without fuss or leaks, helping extend the life of your factory suspension components, tires, and brakes.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi there, I'm Michael with etrailer.com. Today, we're gonna take a quick look at this Hellwig EZ-990 Above Axle Helper Spring Set. These are custom helper springs that will bolt on above the factory leaf springs on your vehicle. These are gonna help to reduce sway and body roll, so it's gonna help give you more control and comfort as you're going down the road. It's also gonna help prevent squatting or sagging in the back end when you're towing or hauling loads. These are a custom fit.
They are designed specifically for your 2007 through 2022 GMC Sierra and Chevrolet Silverado 1500. So the way these work, they are going to flex with the factory leaf springs to help limit bouncing while also providing optimal stability. These do have a weight capacity of 2,000 pounds. Now, when you hear that, that's very tempting to think that means it's going to increase your vehicle's weight carrying capacity by 2,000 pounds, and that's not the case. There's no suspension enhancement system on the market that will increase the vehicle's weight-carrying capacity.
So think of it less like a second set of hands that's helping you lift more weight. Think of it more like a back brace. So it's just there to help your factory suspension, take some of that strain off of it, help to extend the life of your factory suspension, your tires, and your brakes. These are gonna be very easy to get installed. They will just bolt above the factory leaf springs.
You can see, they include all the hardware that you're gonna need to get this installed. The step bracket style leaf is going to avoid contact with your factory hardware. So again, very simple to get installed. They do include instructions for you to walk you through that process. A couple things to note.
If your vehicle is equipped with a factory contact overload, it may need to be removed before installing the new helper springs, but it's a good idea to consult the installation guide for that. Also, if your vehicle has composite or plastic leaf springs, and these are not gonna be a good fit for you because these are gonna be more rigid and durable than your plastic leaf springs. So it could potentially cause damage to those factory springs. So don't wanna do that. When you're talking about suspension enhancement, most people are familiar with airbags. It seems to be the most common one. So when you're comparing these to airbags, there's gonna be some benefits and drawbacks. One of the potential drawbacks is that these aren't very adjustable. So you can tighten down your nuts here to give you a little bit more tension and support, give you a firmer ride. But with your airbags, you have very easy adjustability. You can add air to give you more support, let air out for a lighter engagement, that sort of thing. So these aren't going to give you you as much adjustability as airbags. So some people might prefer the airbags for that reason. This set is gonna be a lot more for those of you who just want to kind of set it and forget it. You don't want to have to worry about the maintenance, having to remember to add air, find the air tank, something like that. So these are going to be a little bit less adjustable. So for those of you who want the adjustability, I would recommend airbags. For those of you who just want to install it once, forget about it, this is gonna be a great way to go for you. These are a very durable spring steel construction. They're made here in the U.S.A. So you can trust they are gonna be good quality. It's gonna ensure a nice long lasting performance. They have a silver vein hammer tone powder coat finish. It's gonna help resist corrosion. And they do come with a lifetime warranty. So if you we're to have any issues with them, you're more than welcome to reach out to us here at etrailer.com. But overall, I think these are gonna be a great way to help your factory suspension, reduce that body roll and sway, and take some of that strain off of your suspension system. And that completes our look for today. Again, I'm Michael with etrailer.com. Thanks for watching.
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews

Jenny N.
2/22/2024
It is very quiet in this review. If you have any questions or concerns then I am happy to assist.

Lazer S.
4/28/2026
Glad to hear they are helping, Thomas! Looks like you have a pretty good amount of weight back there as well, so that's quite the compliment! ^___^ What kind of bike is that? Couldn't tell from the picture.

Robin H.
9/22/2026
Glad to hear it!

Gwendolyn Y.
6/17/2025
Nice set up, Eddie! How was your most recent camping trip?

Carl
2/19/2026
I bought another pick up, so I took these off my old one and installed on my newer truck, still works absolutely great. Highly recommend.

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Brooke M.
4/29/2025
Ooo! The light dusting of snow always makes me feel like going on an adventure -- love the photos! So happy to hear these have served you well in your travels :)