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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
2008 Chrysler Crossfire
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Hellwig

Hellwig EZ-990 Helper Springs - Below Axle

Part Number: HE79XR
In Stock
$871.14
Retail:$1,244.42
You Save: $373.28
Vehicle Suspension
Not Confirmed to Fit

2008 Chrysler Crossfire

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Product Images

Videos

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
1,500-lb Load leveling capacity. Custom helper springs install below your vehicle's rear factory leaf springs to reduce sway and prevent sagging when towing or hauling heavy loads. Single leaf kit is easy to install. Great Prices for the best vehicle suspension from Hellwig. Hellwig EZ-990 Helper Springs - Below Axle part number HE79XR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (2)
  • Q & A (0)
  • Videos (1)
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Hellwig Vehicle Suspension - HE79XR

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • 1,500-lb Load Support: Keeps your truck level and stable when towing or hauling heavy loads.
  • Prevents Rear Sag: Maintains steering control and correct headlight aim under weight.
  • Reduces Sway and Bounce: Flexes with factory leaf springs for a smoother, steadier ride.
  • Extends Suspension Life: Less strain on stock springs, tires, and brakes during heavy use.
  • Simple Bolt-On Install: Mounts below the axle with included hardware for quick setup.
Made in USA

Features to know about

Keep Your Truck Level Under Load: 1,500-lb of Rear Suspension Support

Heavy trailers, campers, or bed loads can make the rear end sag and throw off your handling. The Hellwig EZ-990 Helper Springs add up to 1,500 lbs of load-leveling capacity to keep your truck sitting level and stable when towing or hauling. By working with your factory leaf springs, they cut down on rear squat so your steering, braking, and headlight aim stay steady under load.

Cut Down on Sway and Bounce: Flexible Leaf Design Below the Axle

When bumps or uneven roads start tossing your truck around, these helper springs flex right along with your leaf pack to reduce sway and body roll. The single-leaf design installs below the axle, giving you extra support without a harsh ride. It helps limit bounce and keeps the rear end planted so you stay in control through corners, crosswinds, or rough pavement.

Easy Bolt-On Setup: Ready for DIY Installation

You don’t need a full shop to get these springs installed. The EZ-990 kit bolts below your factory leaf springs using the included mounting hardware—no complicated setup required. It’s a straightforward project with simple tools and clear mounting points that make it ideal for do-it-yourselfers wanting a quick weekend upgrade.

Built to Last: Durable Steel with Corrosion-Resistant Finish

Hauling gear isn’t gentle on suspension parts, so the EZ-990s are built from tough steel for long-lasting performance. They’re finished in a silver vein hammer tone powder coat that resists corrosion from road grime and weather. Once installed, they deliver consistent support trip after trip without constant maintenance or adjustments.

Specs

Weight and Capacity

  • Weight capacity: 1,500 lbs

Comparison chart of Hellwig helper springs showing the EZ-990 below-axle configuration versus other models, highlighting differences in leaf spring design and mounting style for rear suspension enhancement.

Warranty

  • Lifetime warranty

Note

Do not install on vehicles with composite (plastic) leaf springs.

1915 Hellwig EZ-990 Special Design Helper Springs

Installation Details HE79XR Installation instructions

This Product Fits The Following Vehicles




Video of Hellwig EZ-990 Helper Springs - Below 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 Hellwig EZ-990 Helper Springs Spec Review

Hi, everybody. Andy here with etrailer.com. Let's take a look at these Hellwig EZ-990 Helper Springs. Now, these are custom designed to fit your 2014 and newer Ram ProMaster 1500, 2500, and 3500. And on custom fit parts such as these springs, I do recommend taking advantage of our vehicle fit guide here at etrailer.com. Simply input the year, make, and model of your vehicle, and our fit guide will confirm if these will work for you, or if we have something comparable that will work for you.

Now, these custom helper springs with a load leveling capacity of 1500 pounds will upgrade your factory leaf springs, installing below your ProMaster's rear factory leaf springs to reduce sway and body roll, while also, at the same time, preventing sagging when towing heavy loads. Now, they're going to extend the life of your factory suspension tires and brakes. And these springs will flex with your leaf springs to limit bouncing, while providing optimal stability. Now, these springs are made here in the USA of a durable steel construction, which is going to ensure long-lasting performance. And just to give you a brief zoom in here, overhead one of these springs, I just wanted to show you that these do feature a silver vein hammer toned powder coat finish.

And that finish is going to do a great job of resisting corrosion. And this is a bolt-on installation, again, below your ProMaster's rear factory leaf springs. Mounting hardware is included. And as you can see, I kind of have it loosely assembled just to kind of give you an idea of what these are going to look like installed on your ProMaster. So it does include the hardware that you're going to need to successfully install these, along with instructions to guide you through that installation process.

I do want to point out that you don't want to install these on vehicles with composite or plastic leaf springs, because these are so robust and durable. That could potentially damage your plastic or composite leaf springs. So again, if your vehicle does have composite or plastic leaf springs, these helper springs will not be compatible with that. So again, these do have a weight capacity of 1500 pounds. I do wanna point out that Hellwig Helper Springs do not actually increase your vehicle's weight carrying capacity.

And these do have a lifetime warranty from Hellwig. Well, 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.

Ratings & Reviews

5.0

2 reviews
5 Stars
(2)
4 Stars
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1 Star
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by:
2019 dodge Ram Pickup
These helper springs provided the additional strength needed for the suspension in my 2019 RAM Promaster 3500 to properly handle the 9,100 lbs weight of my van conversion.
by:
Easy to install and removes the slosh of an RV.
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See what our Experts say about this Hellwig Vehicle Suspension


Info for this part was:

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

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