To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
When you’re towing a trailer or hauling gear that weighs down the rear, sag and sway can make the drive uneasy. The Hellwig EZ-990 Helper Springs add up to 2,000 lbs of load-leveling support above your factory leaf springs to keep your truck sitting level and steady. With the rear end properly supported, steering, braking, and headlight aim stay consistent even when the bed’s full or the trailer’s hooked up.
Rough roads and heavy loads don’t have to mean a harsh ride. These helper springs flex with your existing leaf pack to limit bounce and body roll while maintaining stability. The added support takes stress off your factory suspension, tires, and brakes, helping them last longer while keeping your ride composed across bumps and dips.
Not every load is the same, and this setup lets you tune it how you like. The U-bolts can be adjusted to fine-tune support for different weights, and each side can be set independently to balance out uneven cargo. Whether you’re carrying heavy tools on one side or a camper in back, you can keep things level for better control.
Installing these helper springs is simple thanks to an easy bolt-on design that mounts above your leaf springs using step-style brackets that avoid contact with factory hardware. Mounting hardware is included, so a DIY setup in the driveway is straightforward without any special tools or fabrication.
Durable steel construction with a silver vein hammer-tone powder coat finish resists corrosion and holds up to real-world hauling. Once these springs are on, they’re ready for years of steady support without losing strength or reliability under load.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everybody, Andy here with etrailer.com. Let's take a look at these Hellwig EZ-990 Helper Springs. Now, these springs are designed to fit your 1988 to 1998 Chevrolet and GMC C and K Series 1500 pickup trucks, and then your 2007 to 2020 Toyota Tundra. On custom fit items such as these springs, it's always a great idea to use 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 these will work for you or if we have something comparable that will work for you. Now, these custom helper springs have a load leveling capacity of 2,000 pounds, and they are going to install above your truck's rear factory leaf springs to reduce sway and body roll while also preventing sagging when towing or hauling light loads.
And they'll extend the life of your factory suspension, tires, and brakes. These springs will flex with your leaf springs to limit bouncing while providing optimal stability. And these U-bolts that you see here on the sides, they can be adjusted to suit different loads, and the driver's and passenger's sides can be adjusted independently for uneven loads. Now, these springs are made here in the USA of a durable steel construction, which will ensure a long lasting performance. And they feature a silver vein hammer tone powder coat finish, it's gonna help resist corrosion.
This is a bolt-on installation. Again, they're gonna install above your factory leaf springs. Mounting hardware is included, and I kinda have these laid out here just to kinda give you an idea of what they're going to look like when you have them installed. So you have the mounting hardware, you have instructions to guide you through that installation process. I do wanna point out that you don't wanna install these on vehicles with composite or plastic leaf springs, because of the durability of these springs.
If you install them on a truck with plastic or composite leaf springs, those springs could be damaged with the installation of these helper springs. Again, the weight capacity is 2,000 pounds. However, I do wanna point out that these Hellwig helper springs do not increase your vehicle's weight carrying capacity. They do have a lifetime warranty on them from Hellwig. And that's gonna wrap up our look today, I do hope that it was helpful for you.
Again, my name is Andy. Thank you for joining me.
Customer Satisfaction Score:
90% were satisfied with this product
10% of customers were not satisfied
Ratings & Reviews
Absolutely! For some reason the truck was sagging on the passenger side. I put the hewing helpers on both sides but snugged the passenger side down a bit and leveled the truck.
Made of good material. Would try on different trucks I have
They were very easy to install and I like the added stiffness it gave to my suspension. I have yet to hook up to my camper but I am looking forward to it.
Completely helped the squating rear on 350xl transit box truck with dual rear wheels. Improved ride and handling when loaded. Rides smooth and looks like it is supposed to.
This is exactly what we needed to finish our customer's job. This shipping was so quick. Thank you all so much!!
Parts ordered, shipping box was compromised, missing parts to do the install.
Now i need to fab a square u-bolt to use the product like i planed this weekend.
Ez-990 helper springs sagged with 800lb camper and bottomed while driving over speed bumps unless creeping. Unloaded there was noticeable tightness, almost binding feeling on bumps. I removed and checking options like airbags or Sumo.
These work great. Very easy install. I have a bed slide and a camper top, and these brought the rear back up to the proper height.
Great product. Quick shipping. Would buy here again.
Product seems good, instructions are terrible . Can't find a video with my product for install anywhere .
Easy to install, very effective and didn’t have much effect on ride quality. Mine worked on the lowest setting with a 16’ camper.
These springs eliminated the rear sag from adding a shell, rubber bed mat, and a little gear.
Easy to install as well, but recomend having a 7/16X20 tap/die to clean threads on supplied u-bolts.
Easy to install. It should help stabilize the rear springs when I tow our boat.
The product fit well and installed would have been a breeze if it wasn’t for the hardware. The u bolts are very poor quality with burrs and poorly tolerances threads. In addition only half the hardware was the correct size. One set of nuts was too big for the u bolts. The hardware was also low quality. In my opinion it should have all been grade 8 corrosion resistant hardware and it is much lower grade. I ended up having to buy all new hardware to be able to install at an additional cost. Now that it is installed the product works fantastic. Just be aware you may need to purchase extra hardware to get it installed.
Helper springs made my Ram 1500 Conversion Van have a more comfortable ride. The springs raised the profile of the back of the van by about 1-1/2", which is not noticeable and the van still looks good. My RV Travel trailer lowered the back half of the van by about 1", before I installed the helper springs. The helper springs should enhance the ride of the van.
The springs lifted my Tacoma with a cap about an inch higher. It would have been more helpful if the directions indicated that a C-Clamp would be useful to compress the spring ends to allow the u-bolts to be installed. The directions also indicated the long end of the spring should face forward. I measured the spring from the end to the hole and this was the same either way, so was confusing. I purchased longer axle u-bolts since the added thickness of this extra spring made the factory u-bolts too short IMO. I feel that should have been part of this kit. Lastly, the u-bolt on the driver's side did not need to be installed sideways per the instruction. It fit fine just as the other u-boults were installed. Maybe the instructions could be updated to be more accurate.
I was a great addition to my RST 1500 Chevy and I transferred to my High Country 1500 Chevy and never missed a beat towing the travel trailer.
Easy install great fit. Readjusted for our new trailer in 10 minutes and working wonderfully.Leveled the truck and rides smooth..
Easy to install, does not affect the ride much , worked great pulling my fish house to the lake. I showed my helper springs to one of my customers, gave him the part number for his truck and he ordered them from e-trailer today. Great product.
Loaded my tacoma with a portaboat on the ladder rack and a few hundred pounds of camping gear. The sag was gone after installing these. The ride is a little bit stiffer when empty as to be expected but not bad even on washboard dirt roads. These can be fairly easily installed and removed if desired. Hardest part is jacking up the truck to sit on the frame
Way better than expected. Huge difference in the rear suspension. It’s almost like having a sway bar.
Easy to install worked great for the application I used it for
Easy install. Seems to work as advertised. The real test is when I get a chance to tow my camper, but truck definitely rides better.
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