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Dorman 929-407 Leaf Spring Assembly - Rear Left
Durable Leaf Spring Assembly for Toyota Tundra Rear Suspension
The Dorman 929-407 leaf spring assembly is engineered to restore the rear suspension performance of your Toyota Tundra. Constructed from high-quality steel with a standard suspension grade, this leaf spring assembly offers reliable support and consistent load handling for your vehicle.
- Made from durable steel material for strength and longevity
- Black finish with black bushings included for corrosion resistance
- Standard suspension grade with a load rate of 1900 lbs
- Five-leaf design with 60 mm leaf width for balanced support
- Rear axle orientation with Berlin eye and up turned eye attachments
- No axle modification required for installation
- Includes bushings but mounting hardware is not included
- Leaf spring arch length of 63.3 inches and pack thickness of 2.13 inches
This Dorman leaf spring assembly (part number 929-407) is designed specifically for the rear suspension of Toyota Tundra models. Featuring a five-leaf configuration, it provides a stable and consistent ride by evenly distributing weight and absorbing road shocks. The black bushings included help reduce noise and wear, while the steel construction ensures durability under heavy loads. The assembly’s standard suspension grade and 1900 lbs load rate make it suitable for everyday driving and moderate hauling needs.
Common Applications and Problem Solving
- Restores sagging or worn rear suspension springs on Toyota Tundra
- Improves vehicle stability and handling under load
- Replaces broken or cracked leaf springs to maintain proper ride height
- Addresses uneven tire wear caused by suspension issues
- Eliminates excessive rear-end bounce and improves comfort
Installation Notes and Tips
The Dorman 929-407 leaf spring assembly is designed for direct replacement on the rear axle of Toyota Tundra trucks without requiring axle modifications. It includes black bushings for a proper fit, but mounting hardware is not included and should be sourced separately. Ensure proper torque specifications are followed during installation and inspect related suspension components for wear. Professional installation is recommended to maintain vehicle safety and performance.
Quality Assurance and Warranty
Dorman manufactures this leaf spring assembly to meet or exceed OEM standards for fit, form, and function. The steel construction and quality bushings contribute to long service life. While specific warranty details are not provided here, Dorman typically offers limited warranties on suspension components to cover defects in materials and workmanship.
| Brand | Dorman |
| Part Number | 929-407 |
| Material | Steel |
| Bushing Color | Black |
| Color | Black |
| Load Rate | 1900 |
| Suspension Grade Type | Standard |
| Leaf Quantity | 5 |
| Leaf Width | 60 |
| Axle Orientation | Rear |
| Helper Spring | No |
| Axle Modification Needed | No |
| Bushings Included | Yes |
| Mounting Hardware Included | No |
| Length Axis 1 | 31.38 |
| Length Axis 2 | 32 |
| Pack Thickness | 2.13 |
| Leaf Spring Arch Length | 63.3 |
| Spring Research Institute Number | 90-395 |
| End 1 Attachment Type | Berlin eye |
| End 2 Attachment Type | Up turned eye |
| Maximum Drop | 0 |
| Package Contents | 1 leaf spring |
This part fits 11 vehicles. Search below:
| Year | Make | Model | Body Type | Bed Length | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2011 | Toyota | Tundra | Crew Cab Pickup | 4WD | 5.7L | V8 | Rear Left | ||
| 2011 | Toyota | Tundra | Extended Crew Cab Pickup | 4WD | 5.7L | V8 | Rear Left | ||
| 2010 | Toyota | Tundra | Crew Cab Pickup | 4WD | 5.7L | V8 | Rear Left | ||
| 2010 | Toyota | Tundra | Extended Crew Cab Pickup | 4WD | 5.7L | V8 | Rear Left | ||
| 2009 | Toyota | Tundra | Crew Cab Pickup | 4WD | 5.7L | V8 | Rear Left | ||
| 2009 | Toyota | Tundra | Extended Crew Cab Pickup | 4WD | 5.7L | V8 | Rear Left | ||
| 2008 | Toyota | Tundra | Crew Cab Pickup | 4WD | 5.7L | V8 | Rear Left | ||
| 2008 | Toyota | Tundra | Extended Crew Cab Pickup | 4WD | 5.7L | V8 | Rear Left | ||
| 2007 | Toyota | Tundra | Crew Cab Pickup | 6' 6" Foot Bed | RWD | 4.7L | V8 | Rear Left | |
| 2007 | Toyota | Tundra | Crew Cab Pickup | 4WD | 5.7L | V8 | Rear Left | ||
| 2007 | Toyota | Tundra | Extended Crew Cab Pickup | 4WD | 5.7L | V8 | Rear Left |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.