---
product_id: 390848367
title: "(RAS®) RoadActive Suspension 4611-TDHD | Fits Toyota Tundra 1999-2021"
brand: "ras"
price: "1043748CFA"
currency: XOF
in_stock: true
reviews_count: 8
url: https://www.desertcart.sn/products/390848367-ras-roadactive-suspension-4611-tdhd-fits-toyota-tundra-1999-2021
store_origin: SN
region: Senegal
---

# 40-50% stronger rear suspension 2-3’’ reduced squat under load 1-hour no-tool installation (RAS®) RoadActive Suspension 4611-TDHD | Fits Toyota Tundra 1999-2021

**Brand:** ras
**Price:** 1043748CFA
**Availability:** ✅ In Stock

## Summary

> 🚛 Elevate your Tundra’s toughness and control—because every drive deserves peak performance!

## Quick Answers

- **What is this?** (RAS®) RoadActive Suspension 4611-TDHD | Fits Toyota Tundra 1999-2021 by ras
- **How much does it cost?** 1043748CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/390848367-ras-roadactive-suspension-4611-tdhd-fits-toyota-tundra-1999-2021)

## 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

- • **Effortless Upgrade:** Install in just one hour—no special tools, no hassle, no downtime.
- • **Consistent Ride Quality:** Guaranteed to maintain or improve your truck’s ride comfort, no readjustments needed.
- • **Proudly Made in the USA:** Authentic RoadActive Suspension craftsmanship ensures durability and reliability you can trust.
- • **Unmatched Strength Boost:** Reinforce your Tundra’s rear suspension with up to 50% more load capacity—built for the long haul.
- • **Enhanced Stability & Control:** Slash body roll and sway for a smoother, safer ride whether loaded or empty.

## Overview

The RAS® RoadActive Suspension 4611-TDHD is a heavy-duty rear leaf spring upgrade designed specifically for Toyota Tundra models from 1999 to 2021. Made in the USA, it delivers 40-50% increased rear suspension strength, reduces rear squat by 2-3 inches, and improves handling by minimizing sway and body roll. This set installs easily within an hour without special tools or maintenance, ensuring consistent ride quality whether your truck is loaded or unloaded.

## Description

Full description not available

## Features

- Authentic Made In USA RoadActive Suspension HD rear leaf spring upgrade by (RAS)RoadActive Suspension. Completely simplifies improved load and road handling without maintenance or hassle.
- Provides up to 40-50% additional strength to rear suspension and improve squat by up to 2-3’’
- Maximize everyday performance by reducing sway, body roll, greatly improved handling and stability
- Guaranteed to maintain or improve loaded and unloaded ride quality without need for readjustments
- Comes as a set. Estimated 1 hour installation with no special tools or maintenance required

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | RoadActive Suspension |
| Brand | RAS |
| Item Weight | 30.1 pounds |
| Package Dimensions | 31.5 x 10.2 x 5.6 inches |
| Manufacturer Part Number | 4611-TDHD |

## Images

![(RAS®) RoadActive Suspension 4611-TDHD | Fits Toyota Tundra 1999-2021 - Image 1](https://m.media-amazon.com/images/I/51zcUhmZh5L.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

### ⭐⭐⭐⭐⭐ Helps a ton with towing
*by J***N on July 27, 2025*

I tow heavy for a living, doing material delivery and demolition hauling for construction companies, and my Tundra needed some extra beef to handle it more comfortably. These RoadActive springs assist the stock leafs with a great deal of the load. The truck rides even smoother than stock both loaded and unloaded. Installation is easy as pie if you have a decent understanding of working with your hands and reading the directions. Tons and tons of YouTube videos for the install also.On my setup I use HD sumo springs, HD RoadActive tuned to the black disk thickness and a Torch add-a-leaf. With the three products combined, this truck can handle almost anything. The sumo springs do far more for weight but the RoadActive is fantastic for stability, cornering and ride quality. Couldn’t recommend more.

### ⭐⭐⭐⭐⭐ Worth the money!
*by A***N on April 8, 2025*

Super easy and quick install. YOU DONT EVEN HAVE TO REMOVE THE TIRES!. The RAS really helped improve the ride on my lifted Tundra and really helps off road. Especially when loaded and towing. Best purchase.

### ⭐⭐⭐⭐⭐ Great so far .
*by R***  on January 11, 2025*

Easy to install . Havent towed with it . Haul several loads of hay about 1600 lbs. Made the truck ride and handle so much better . Even empty the truck handles better . I set it at the 2mm , black chip setting . Have a 3 horse trailer thats 4300 lbs empty waiting for spring / summer to load it and try the suppension out .

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-16*