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  1. Vehicle Suspension
  2. Hellwig
  3. Leaf Springs and Helper Springs
  4. Towing/Load Leveling
  5. Rear Axle Suspension Enhancement
  6. Standard Duty
THIS ITEM IS NOT A FIT FOR
2005 Chrysler Pacifica
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Hellwig

Hellwig EZ-990 Helper Springs - Above Axle

Part Number: HE99XR
In Stock
$293.94
Retail:$419.89
You Save: $125.95
Vehicle Suspension
Not Confirmed to Fit

2005 Chrysler Pacifica

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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
2,000-lb Load leveling capacity. Custom helper springs install above your vehicle's rear factory leaf springs to reduce sway and prevent sagging when towing or hauling light loads. Adjustable springs increase stability. Easy bolt-on design. Great Prices for the best vehicle suspension from Hellwig. Hellwig EZ-990 Helper Springs - Above Axle part number HE99XR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (124)
  • Q & A (0)
  • Videos (1)
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Hellwig Vehicle Suspension - HE99XR

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • 2,000-lb Load Support: Keeps your truck level and stable when hauling or towing light loads.
  • Smoother, Safer Handling: Reduces sway and body roll so steering and braking stay consistent.
  • Long-Term Suspension Protection: Helps prevent sagging and extends life of springs, tires, and brakes.
  • Adjustable for Any Load: U-bolts can be tightened to match heavy or uneven cargo on each side.
  • Quick DIY Install: Bolts above factory leaf springs with included hardware for easy setup.
Made in USA

Features to know about

Stay Level When You Tow or Haul: 2,000-lb Load Leveling Capacity

When you’re towing a trailer or hauling a full bed of gear, sag and sway can make the drive stressful. The Hellwig EZ-990 Helper Springs add up to 2,000 lbs of load-leveling capacity to keep your truck level and stable under light to moderate loads. They work with your factory leaf springs to reduce body roll and maintain ride height so steering, braking, and headlight aim stay consistent even when you’re loaded down.

Smooth Out the Bounce: Flexes with Your Suspension

A bumpy ride can wear out your suspension and make every mile rough. These helper springs flex with your factory leaf springs to limit bounce while keeping the truck steady. By sharing the load, they help extend the life of your original suspension parts, tires, and brakes while giving you a smoother, more controlled ride on highways or uneven roads.

Fine-Tune for Every Load: Adjustable U-Bolts for Even Support

Not every load is the same, and sometimes one side of the truck carries more weight than the other. The adjustable U-bolts on the EZ-990 let you dial in tension for different loads, and each side can be set independently when things aren’t evenly balanced. That flexibility helps keep your truck level across both sides so you stay stable when hauling uneven cargo.

Install It Yourself and Hit the Road: Bolt-On Design

Adding extra support shouldn’t mean tearing your truck apart. The EZ-990’s bolt-on design mounts above your existing leaf springs using included hardware—no complicated modifications or special tools needed. The step bracket style keeps it clear of factory hardware, making the install straightforward for any DIYer with basic tools and a place to work.

Built to Last Through Every Haul: Durable Steel Construction

Repeated towing and heavy hauling can take a toll on parts that aren’t built tough. The Hellwig EZ-990 uses durable steel construction with a silver vein hammer tone powder coat finish that resists corrosion trip after trip. Once installed, it’s built for years of dependable support without letting you down under pressure.

Specs

Weight and Capacity

  • Weight capacity: 2,000 lbs

Warranty

  • Lifetime warranty

Note

  • Installation note: Do not install on vehicles with composite (plastic) leaf springs.

975 Hellwig EZ-990 Helper Springs

Installation Details HE99XR Installation instructions

This Product Fits The Following Vehicles




Video of Hellwig EZ-990 Helper Springs - Above Axle
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Hellwig Vehicle Suspension - Helper Springs Above Axle - HE99XR

Hi, everyone. Steve here with etrailer. Today we're looking at the Hellwig EZ-990 Helper Springs for Above Axle application. Now folks, these are custom. They're gonna mount to existing attachment points on your vehicle, so make sure you're checking the fit guide over at etrailer.com where it says My Vehicle Information. Anything like year, make, and model, two-wheel drive, four-wheel drive, anything it asks to be sure you getting the right parts the first time.

Now I do want to point out that I just have these loosely fit on here today just for your viewing pleasure, and, as you can see, these only have one nut on 'em each. Per the instructions, they would have two nuts on each threaded bolt. So keep that in mind, and make sure you follow the instructions whenever you're making your installation and everything. Now I do want to take one of these off and kind of show you the end and then kind of show you this hammered finish here. It's like a silver/gray black mix, a nice hammered finish, very nice design.

It's going to eliminate pretty much, keep rust, corrosion, those kind of things from happening. And the nice thing about this kit is you can independently adjust it, giving you a balance for uneven loads and those kind of things, and it's gonna help with reducing sway. It's gonna minimize that body roll whenever you're making corners and when you're towing and stuff and just enhance that rear suspension, thus giving you improved braking, steering, and those kind of things. So, again, you have the nice Silver Vein hammertone coating to ensure durability and preventing rust, and then you have everything here you need for installation as well. Folks, that will wrap up our quick look together.

I'm Steven. Thanks for watching, and have a great day.

Ratings & Reviews

4.4

124 reviews
5 Stars
(84)
4 Stars
(21)
3 Stars
(11)
2 Stars
(4)
1 Star
(4)
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by:
2020 Ford F-150 Raptor
Product seems good, instructions are terrible . Can't find a video with my product for install anywhere .
Heather A. profile picture
Etrailer Expert

Heather A.

4/11/2026

We currently do not have a video of this being installed on the Raptor. Do you have any questions about the install? I am happy to help you.

by:
This is exactly what we needed to finish our customer's job. This shipping was so quick. Thank you all so much!!
by:
2018 Ford F-150 Raptor
Product looks well built, will be installing it soon.
by:
by:
Way better than expected. Huge difference in the rear suspension. It’s almost like having a sway bar.
Lazer S. profile picture
Etrailer Expert

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.

by:
2021 Toyota Tacoma
Received this relatively fast. Great condition. Very easy to install one a Tacoma.
Robin H. profile picture
Etrailer Expert

Robin H.

9/22/2026

Glad to hear it!

by:
2005 Toyota Tundra
Not sure what to think. I ordered a ez-990 but received a 991 which says on the box it is a leveling kit but the 990 says it is a helper spring kit. This is going to my son and he thinks it is going to work. Ultimately he doesn't need a leveling kit he needs a helper spring kit. Aside from that the ordering, shipping and delivery process was excellent.
by:
2021 Toyota Tacoma
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
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

6/17/2025

Nice set up, Eddie! How was your most recent camping trip?

by:
2011 chevrolet Silverado
It worked perfectly for my needs. It helped my 2011 Silverado from sagging too much without raising the backend of the truck much (1/4 to 1/2) while empty. I can adjust this added spring to have less sag but then I raise the backend a little more. It's at a happy medium. It is easy to fine tune it if I want more or less spring support.
by:
It added lift to the truck and helps greatly when towing our 23 foot Travel Trailer.
by:
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.
Brooke M. profile picture
Etrailer Expert

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 :)

by:
2011 Ford F-150
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.
Carl profile picture

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.

Chris R. profile picture
Etrailer Expert

Chris R.

2/19/2026

@Carl That's awesome! And congrats on the new truck.
by:
2012 Toyota Tacoma
I believe you are overcharging for these products. In my case I had to replace one of them and that is the reason I took your price, I did't like it but I
needed that part.
by:
Easy install great fit. Readjusted for our new trailer in 10 minutes and working wonderfully.Leveled the truck and rides smooth..
by:
toyota Tacoma
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.
by:
U bolts are to long and would not allow the prop tightening.
Hellwig customer service advices to shim with washers.
Poor recommend repair.
by:
2002 dodge Ram Pickup
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.
by:
2013 Ford F-150
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.
by:
Well they work great. I currently have 4 of second round of nuts that are supposed to be installed. Not catching. Which is frustrating cause I hand started all but can’t get 2 round of nuts on.
by:
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.
by:
2015 Toyota Tacoma
Easy to install. It should help stabilize the rear springs when I tow our boat.
by:
2020 Toyota Tacoma
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.
by:
Easy to install, very effective and didn’t have much effect on ride quality. Mine worked on the lowest setting with a 16’ camper.
Christopher H. profile picture
Etrailer Expert

Christopher H.

8/4/2026

Glad these worked well for your Dennis and thanks for including the video!

by:
1990 Ford F-150, F-250, F-350
Great product. Quick shipping. Would buy here again.
by:
2021 toyota Tacoma
This lifted the back of my tacoma perfectly. I usually drive around with about 600lbs of tools in the bed under my 150lbs cap. No more squatting!
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See what our Experts say about this Hellwig Vehicle Suspension

  • Recommended Helper Springs for a 2014 Ford F-150 Raptor
    I took a look at the instructions for the Hellwig EZ-990 Helper Springs item # HE99XR. This will indeed fit your 2014 Ford F-150 Raptor with the only exclusion being if you have composite leaf springs. We haven't heard of any compatibility issues with your make and model truck. I went ahead and linked the instructions below so you can take a look at them for yourself. They state at the top they are for a Ford Raptor.
    view full answer...

Info for this part was:

Employee Steven C
Installed by:
Steven C
Employee Daron K
Edited by:
Daron K
Employee Alex H
Written by:
Alex H
Employee John S
Video Edited:
John S
Employee Sabrina W
Updated by:
Sabrina W
Employee Lincoln B
Updated by:
Lincoln B

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