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Dorman 22-1289HD Leaf Spring Assembly - Rear
Durable Leaf Spring Assembly for Heavy-Duty Suspension
The Dorman 22-1289HD leaf spring assembly is engineered to provide reliable rear suspension support for Chevrolet and GMC heavy-duty trucks. Designed with high-quality steel and a heavy-duty load rate, this leaf spring assembly ensures consistent performance under demanding conditions.
- Constructed from durable steel material for strength and longevity
- Heavy-duty suspension grade with a 3200 lb load rate
- Single leaf design with a 2.5-inch width for precise fitment
- Black finish with black bushings included for corrosion resistance
- Compatible with rear axle orientation on select Chevrolet and GMC trucks
Product Details and Specifications
The Dorman 22-1289HD leaf spring assembly features a 32-inch length and a 6.5-inch arch length, providing the necessary support and flexibility for heavy-duty applications. This assembly includes black bushings to reduce noise and vibration, enhancing ride quality. It is designed specifically for rear axle installation and does not require axle modification, simplifying the replacement process. The pack thickness measures 3.234 inches, ensuring proper suspension geometry and load distribution.
Compatible Vehicles and Applications
This leaf spring assembly is compatible with the following models:
- Chevrolet Sierra 2500 and 2500 HD
- Chevrolet Sierra 3500 and 3500 HD
- Chevrolet Silverado 2500 and 2500 HD
- Chevrolet Silverado 3500 and 3500 HD
- GMC Sierra 2500 and 2500 HD
- GMC Sierra 3500 and 3500 HD
Common Suspension Issues Addressed
- Sagging or worn leaf springs causing uneven ride height
- Reduced load carrying capacity affecting vehicle stability
- Excessive noise or vibration from deteriorated bushings
- Poor handling due to weakened suspension components
- Rear axle misalignment or suspension sag under heavy loads
Installation Notes and Tips
The Dorman 22-1289HD leaf spring assembly is designed for direct replacement without the need for axle modification. Ensure the vehicle is properly supported and the rear axle is securely positioned before beginning installation. Since mounting hardware is not included, reuse existing hardware if in good condition or source appropriate replacements. Proper torque specifications should be followed to maintain suspension integrity and safety.
Quality Assurance and Warranty
Dorman manufactures this leaf spring assembly to meet or exceed OEM standards, using high-grade steel and quality bushings for durability. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.
| Brand | Dorman |
| Part Number | 22-1289HD |
| Material | Acero |
| Material | Steel |
| Bushing Color | Black |
| Bushing Color | Negro |
| Bushing Color | Noir |
| Color | Black |
| Color | Negro |
| Color | Noir |
| Load Rate | 3200 |
| Suspension Grade Type | Heavy duty |
| Suspension Grade Type | Para uso pesado |
| Leaf Quantity | 1 |
| Leaf Quantity | 1 ensamble de manguera del calentador |
| Leaf Width | 2.5 |
| Axle Orientation | Arrière |
| Axle Orientation | Rear |
| Axle Orientation | Trasero |
| Helper Spring | No |
| Helper Spring | Non |
| Axle Modification Needed | No |
| Axle Modification Needed | Non |
| Bushings Included | Oui |
| Bushings Included | Sí |
| Bushings Included | Yes |
| Mounting Hardware Included | No |
| Mounting Hardware Included | Non |
| Length Axis 1 | 32 |
| Length Axis 2 | 32 |
| Pack Thickness | 3.234 |
| Leaf Spring Arch Length | 6.5 |
This part fits 44 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2010 | Chevrolet | Silverado 2500 HD | Rear | Heavy Duty Aftermarket Design |
| 2010 | Chevrolet | Silverado 3500 HD | Rear | Heavy Duty Aftermarket Design |
| 2010 | GMC | Sierra 2500 HD | Rear | Heavy Duty Aftermarket Design |
| 2010 | GMC | Sierra 3500 HD | Rear | Heavy Duty Aftermarket Design |
| 2009 | Chevrolet | Silverado 2500 HD | Rear | Heavy Duty Aftermarket Design |
| 2009 | Chevrolet | Silverado 3500 HD | Rear | Heavy Duty Aftermarket Design |
| 2009 | GMC | Sierra 2500 HD | Rear | Heavy Duty Aftermarket Design |
| 2009 | GMC | Sierra 3500 HD | Rear | Heavy Duty Aftermarket Design |
| 2008 | Chevrolet | Silverado 2500 HD | Rear | Heavy Duty Aftermarket Design |
| 2008 | Chevrolet | Silverado 3500 HD | Rear | Heavy Duty Aftermarket Design |
| 2008 | GMC | Sierra 2500 HD | Rear | Heavy Duty Aftermarket Design |
| 2008 | GMC | Sierra 3500 HD | Rear | Heavy Duty Aftermarket Design |
| 2007 | Chevrolet | Silverado 2500 HD | Rear | Heavy Duty Aftermarket Design |
| 2007 | Chevrolet | Silverado 3500 HD | Rear | Heavy Duty Aftermarket Design |
| 2007 | GMC | Sierra 2500 HD | Rear | Heavy Duty Aftermarket Design |
| 2007 | GMC | Sierra 3500 HD | Rear | Heavy Duty Aftermarket Design |
| 2006 | Chevrolet | Silverado 2500 | Rear | Heavy Duty Aftermarket Design |
| 2006 | Chevrolet | Silverado 3500 | Rear | Heavy Duty Aftermarket Design |
| 2006 | GMC | Sierra 2500 HD | Rear | Heavy Duty Aftermarket Design |
| 2006 | GMC | Sierra 3500 | Rear | Heavy Duty Aftermarket Design |
| 2005 | Chevrolet | Silverado 2500 | Rear | Heavy Duty Aftermarket Design |
| 2005 | Chevrolet | Silverado 3500 | Rear | Heavy Duty Aftermarket Design |
| 2005 | GMC | Sierra 2500 HD | Rear | Heavy Duty Aftermarket Design |
| 2005 | GMC | Sierra 3500 | Rear | Heavy Duty Aftermarket Design |
| 2004 | Chevrolet | Silverado 2500 | Rear | Heavy Duty Aftermarket Design |
| 2004 | Chevrolet | Silverado 3500 | Rear | Heavy Duty Aftermarket Design |
| 2004 | GMC | Sierra 2500 | Rear | Heavy Duty Aftermarket Design |
| 2004 | GMC | Sierra 3500 | Rear | Heavy Duty Aftermarket Design |
| 2003 | Chevrolet | Silverado 2500 | Rear | Heavy Duty Aftermarket Design |
| 2003 | Chevrolet | Silverado 3500 | Rear | Heavy Duty Aftermarket Design |
| 2003 | GMC | Sierra 2500 | Rear | Heavy Duty Aftermarket Design |
| 2003 | GMC | Sierra 3500 | Rear | Heavy Duty Aftermarket Design |
| 2002 | Chevrolet | Silverado 2500 | Rear | Heavy Duty Aftermarket Design |
| 2002 | Chevrolet | Silverado 3500 | Rear | Heavy Duty Aftermarket Design |
| 2002 | GMC | Sierra 2500 | Rear | Heavy Duty Aftermarket Design |
| 2002 | GMC | Sierra 3500 | Rear | Heavy Duty Aftermarket Design |
| 2001 | Chevrolet | Silverado 2500 | Rear | Heavy Duty Aftermarket Design |
| 2001 | Chevrolet | Silverado 3500 | Rear | Heavy Duty Aftermarket Design |
| 2001 | GMC | Sierra 2500 | Rear | Heavy Duty Aftermarket Design |
| 2001 | GMC | Sierra 3500 | Rear | Heavy Duty Aftermarket Design |
| 2000 | Chevrolet | Silverado 2500 | Rear | Heavy Duty Aftermarket Design |
| 2000 | GMC | Sierra 2500 | Rear | Heavy Duty Aftermarket Design |
| 1999 | Chevrolet | Silverado 2500 | Rear | Heavy Duty Aftermarket Design |
| 1999 | GMC | Sierra 2500 | Rear | Heavy Duty Aftermarket Design |
* 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.