
Firestone Ride-Rite Rear Air Helper Spring Kit for 2007-2021 Toyota Tundra
A vehicle-specific rear air spring system designed to level your Toyota Tundra under load, improve control while towing or hauling, and restore a more stable ride when the rear suspension is working hard.
Overview
The Firestone Ride-Rite 2445 Rear Air Spring Kit is a heavy-duty suspension solution designed specifically for the Toyota Tundra. These air bags install between the frame and the axle to provide adjustable load support. Whether you are towing a heavy trailer or hauling a bed full of gear, this kit allows you to level your vehicle, improve steering control, and maintain optimal braking performance under load.
R&P Service Insight
Air helper springs are vital for safety when towing. Over time, leaf springs can sag; this kit acts as a secondary support system to revitalize your suspension's load-carrying capability.
- Wear: Periodically check air lines for kinks or rubbing to ensure long-term pressure retention.
- Exposure: Features high-strength brackets and heavy-duty rubber bellows designed to withstand road salts and debris.
- Load Stress: Rated for up to 5,000 lbs of load-leveling capacity—perfect for boat trailers, campers, and heavy hauling.
R&P Knowledge Hub
Compatibility: Designed for leaf-spring suspensions. Compatible with most In-Bed Hitches.
Vehicle / System Fit: Fits 2007-2021 Toyota Tundra (2WD & 4WD). Note: Lifted trucks will require additional spacers.
Installation Notes: 100% no-drill installation. Uses existing factory holes for a clean, bolt-on setup.
Performance Insight: By adjusting air pressure between 5-100 PSI, you can level your truck to help prevent squat, keep headlights aimed correctly, and reduce wear on rear suspension components.
Features
5,000 lbs Capacity
Maximum load-leveling support for heavy hauling and towing applications.
Custom Tundra Fit
Application-specific design for 2007-2021 Toyota Tundra models.
No-Drill Installation
Simple bolt-on setup using factory holes with an estimated install time of 2.5 to 3.5 hours.
Adjustable Support
Manual inflation and deflation lets you tune pressure to match changing loads.

Specifications
| Specification | Detail |
|---|---|
| Type | Ride-Rite Air Spring Kit |
| Application | Rear Axle Load Support |
| Fitment | No-Drill Bolt-On |
| Material / Finish | Commercial Grade Rubber / Powder-Coated Steel |
| Load Capacity | 5,000 lbs |
| Pressure Range | 5 PSI (Min) - 100 PSI (Max) |
| Part Number | AS2445 |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | 2007-2021 Toyota Tundra (2WD & 4WD) |
| Axle / Capacity | Rear Axle / 5,000 lbs Leveling |
| Notes | Compatible with In-Bed Hitches. Lifted trucks require spacers. |
Included Components
| Quantity | Item |
|---|---|
| 2 | Ride-Rite Air Springs (Bellows) |
| 1 Set | Upper & Lower Mounting Brackets |
| 1 | Air Line Tubing (Red) |
| 2 | Manual Inflation Valves (Schrader Type) |
| 1 Kit | Mounting Hardware (Bolts, Nuts, Washers, Zip Ties) |
