---
product_id: 420009332
title: "RAS (®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2022"
brand: "ras"
price: "$1486"
currency: NZD
in_stock: false
reviews_count: 5
url: https://www.desertcart.nz/products/420009332-ras-roadactive-suspension-4611-hd-fits-chevy-gmc-1500-1990
store_origin: NZ
region: New Zealand
---

# Strengthens leaf springs by 50% Reduces rear squat by up to 3 inches 3-in-1 suspension upgrade (helper spring, sway bar, traction bar) RAS (®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2022

**Brand:** ras
**Price:** $1486
**Availability:** ❌ Out of Stock

## Summary

> 🚛 Elevate your haul game—ride stable, tow stronger, and never settle for less!

## Quick Answers

- **What is this?** RAS (®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2022 by ras
- **How much does it cost?** $1486 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/420009332-ras-roadactive-suspension-4611-hd-fits-chevy-gmc-1500-1990)

## Best For

- ras enthusiasts

## Why This Product

- Trusted ras brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Squat & Bounce Be Gone:** Cuts rear squat by 2-3 inches, delivering a stable, controlled ride even under heavy loads.
- • **Plug & Play Performance:** Installs in 45 minutes with zero maintenance or adjustments—performance without the hassle.
- • **Heavy-Duty Strength Boost:** Reinforces rear leaf springs up to 50% for superior load support and towing confidence.
- • **Built to Outlast & Outperform:** Engineered and assembled in North Carolina since 1998, trusted by pros for durability and ride quality.
- • **Triple-Action Suspension Upgrade:** Combines helper spring, sway bar, and traction bar into one sleek, cost-effective system.

## Overview

The RAS RoadActive Suspension 4611-HD is a heavy-duty rear leaf spring upgrade designed for Chevy/GMC 1500 trucks (1990-2022). It strengthens leaf springs by up to 50%, reduces rear squat by up to 3 inches, and combines helper spring, sway bar, and traction bar functions into one maintenance-free system. Engineered and assembled in North Carolina, this kit installs in under an hour and delivers unmatched ride quality and towing stability without stiff suspension trade-offs.

## Description

"Heavy Duty(HD) rear leaf spring upgrade by RoadActive Suspension designed to enable improved towing capability, comfort and everyday performance without hassle. Suspension kit comes as set of variable rated tension coil spring designed to strengthen existing leaf springs by an additional 40-50% over stock factory leaf springs. The mechanically active suspension works to maintain the arch in the existing leaf springs and engage proportionate to force or weight that is applied, absorbing and dissipating load force energy. The unique design helper spring provides greatly improved stability, increased & improved load carrying capabilities, reduction in rear squat, reduced bounce, improved traction and driver control. RoadActive Suspension guarantees 100% ride comfort and maximum performance, with or without load. Once installed with proper tension setting, no adjustments necessary. Heavy Duty kit ideal for most towing and hauling applications or with +2'' of squat while loaded."

Review: Put this on a 2020 Silverado 1500 Custom Trail Boss. Double Cab, 4.3, 6L80, 4x4. To preface, all hardware comes loosely installed. I had no missing parts. It’s worth the money if you don’t want to go with helper bags. It’s a poor man’s overload spring and is worth every penny. No squat. If you’re towing ANY kind of trailer, especially with the trail boss suspension, buy it. If you don’t 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 I’ve put thousands of miles on this truck since install), and the rear ride height was raised by 1”. Even hauling a single axle enclosed trailer, you can tell the difference. It’s soft when you need it to be. It doesn’t squat under load. It does the job it’s intended for, and does it extremely well. I combined this with the Hellwig sway bar kit, and let me tell you…Chevrolet needs to pay attention and take notes.
Review: RAS has been installed, so far everything is excellent. No more air bag hassles. RAS is maintenance free.

## Features

- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | RAS |
| Brand | RAS |
| Package Dimensions | 78.74 x 25.02 x 13.97 cm; 13.58 kg |
| Item model number | 4611-HD |
| Manufacturer Part Number | 4611-HD |
| Position | Rear |
| Item Weight | 13.6 Kilograms |

## Product Details

- **Brand:** RAS
- **Auto part position:** Rear
- **Material:** Alloy Steel
- **Included components:** Necessary tools and parts for installation
- **Maximum lifting height:** 3 Inches

## Images

![RAS (®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2022 - Image 1](https://m.media-amazon.com/images/I/51KCfFTB8zL._AC_SX679_.jpg)
![RAS (®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2022 - Image 2](https://m.media-amazon.com/images/I/61Pi6-Ech7L._AC_SL1500_.jpg)
![RAS (®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2022 - Image 3](https://m.media-amazon.com/images/I/61Pi6-Ech7L._AC_SX679_.jpg)
![RAS (®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2022 - Image 4](https://m.media-amazon.com/images/I/61bTX7Yq-0L._AC_SX679_.jpg)
![RAS (®) RoadActive Suspension 4611-HD | Fits Chevy/GMC 1500 1990-2022 - Image 5](https://m.media-amazon.com/images/I/71DnIafzpuL._AC_SX679_.jpg)

## Questions & Answers

**Q: Are there counterfeit or knockoff versions of RoadActive Suspension kits?**
A: Beware of imitation kits sold online. Only genuine RoadActive Suspension products have been engineered, tested, and warrantied in North Carolina since 1998. Listings with RAS in the title are genuine RoadActive Suspension products.

**Q: How much does RAS increase payload capacity?**
A: While RAS  can strengthen the rear suspension by up to 50% in a progressive manner and can improve the way your truck handles loads; it and no other suspension upgrade can increase the manufacturer weight ratings.

**Q: Will RAS fit my lifted truck?**
A: From a fitment standpoint, RAS often fits lifted trucks without an issue.  Before ordering for your lifted truck, be sure to check your suspension for possible obstructions. If there appears to be an issue please contact RAS directly for assistance.

**Q: Will RAS help reduce my rear squat?**
A: Yes! While RAS is geared towards improving overall load handling, stability, and performance without hassle; RAS will also help reduce rear squat by up to 2-3 inches.

**Q: How is RAS different from other suspension helpers such as air bags?**
A: RAS offers a  more complete solution,  where enhancing stability, reducing rear squat, dampening excessive rebound, improving performance, and providing same-as or better-than-stock ride is just as important as reducing rear squat.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***M on 15 December 2024*

Put this on a 2020 Silverado 1500 Custom Trail Boss. Double Cab, 4.3, 6L80, 4x4. To preface, all hardware comes loosely installed. I had no missing parts. It’s worth the money if you don’t want to go with helper bags. It’s a poor man’s overload spring and is worth every penny. No squat. If you’re towing ANY kind of trailer, especially with the trail boss suspension, buy it. If you don’t 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 I’ve put thousands of miles on this truck since install), and the rear ride height was raised by 1”. Even hauling a single axle enclosed trailer, you can tell the difference. It’s soft when you need it to be. It doesn’t squat under load. It does the job it’s intended for, and does it extremely well. I combined this with the Hellwig sway bar kit, and let me tell you…Chevrolet needs to pay attention and take notes.

### ⭐⭐⭐⭐⭐ Review
*by D***A on 31 July 2023*

RAS has been installed, so far everything is excellent. No more air bag hassles. RAS is maintenance free.

### ⭐⭐⭐⭐⭐ Review
*by B***T on 2 December 2025*

I bought these in place of air bags that I was looking at. Im very happy with the results, especially at a third of the cost. Took about 1 hour to install with not hitting it hard. Takes a little to get used to adjusting but it's very easy to do.

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-24*