Support your truck's weight and payload at the rear axle with the Dorman leaf spring, part number 929-126, a rear suspension leaf spring built to carry the load. It fits many vehicles, among them the 1999-2010 Chevrolet Silverado 2500, 2001-2010 Chevrolet Silverado 2500 HD and 2001-2010 GMC Sierra 2500 HD. See the "Vehicles it fits" section for the full list.
A properly working leaf spring holds up the vehicle and its payload, and it plays a key role in suspension performance and passenger comfort. Review the product attributes and the "Vehicles it fits" section to choose the right spring for your truck.
- Direct replacement: Dorman designed it to replicate the original spring's fit and function on the listed vehicles.
- Ideal solution: Replaces a leaf spring damaged by overloading, collision, cracking or corrosion, or one that is due for replacement.
- Durable construction: Made from quality materials to strict specifications and intended for reliable performance.
- Trustworthy quality: Engineered, manufactured and supported by Dorman, which describes itself as the premier aftermarket leaf spring provider in the USA.
Rear leaf springs work as a left/right pair, so replacing both sides together is recommended for balanced ride height. Consult the vehicle service information for the correct mounting hardware and whether the original fasteners may be reused.
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Frequently Asked Questions
What does the Dorman 929-126 leaf spring do?
It is a rear suspension leaf spring that holds the weight and payload of the truck and contributes to suspension performance and passenger comfort.
Is this the right leaf spring for a 2001-2010 GMC Sierra 2500 HD?
It is listed for the rear of the 2001-2010 GMC Sierra 2500 HD. The "Vehicles it fits" section shows every listed application.
Does this 2001-2010 Chevrolet Silverado 2500 HD leaf spring also fit the 1999-2010 Chevrolet Silverado 2500?
Yes. It is listed for both the 2001-2010 Chevrolet Silverado 2500 HD and the 1999-2010 Chevrolet Silverado 2500 as separate applications.
What are signs a leaf spring may need replacing?
A sagging rear end, cracked or broken leaves, heavy corrosion, or damage from overloading or a collision are signs the leaf spring may need replacement.
Should I replace both rear leaf springs at the same time?
Replacing both sides together is recommended for balanced ride height. Consult the vehicle service information for the correct mounting hardware and whether the original fasteners may be reused.
