Hold your rear leaf springs tight to the axle with the Dorman OE Solutions Leaf Spring Axle U-Bolt Kit 929-704, a U-bolt repair kit for the rear suspension. It fits many vehicles, among them the 1999-2021 Chevrolet Silverado 1500, 1999-2021 GMC Sierra 1500 and 1999-2010 Chevrolet Silverado 2500, as a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list.
- Reliable hardware: The kit's components are designed to secure the leaf spring or leaf spring bundle to the underside of the axle.
- Check fit: Review the dimensions of the leaf springs being used, along with other application details, to choose the correct type and size of U-bolt kit.
- Durable construction: The components are engineered from quality materials for dependable performance and long service life.
- Trustworthy quality: Backed by a U.S.-based team of product experts and more than a century of automotive experience.
Leaf spring U-bolts clamp the spring to the axle so the axle stays located on the spring. Signs a U-bolt kit may need replacing include heavy corrosion, damaged threads, or U-bolts that have loosened. If worn or damaged U-bolt hardware is the cause of a problem, this kit replaces it. Follow the vehicle service information for the installation procedure, torque specifications and whether any original hardware may be reused.
Interchange: 361-368
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Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
What does the Dorman 929-704 U-bolt kit do?
Its components are designed to hold the leaf spring or leaf spring bundle securely to the underside of the axle, clamping the spring to the axle in the rear suspension.
Will it fit my 1999-2021 Chevrolet Silverado 1500 or 1999-2021 GMC Sierra 1500?
It is listed as a direct-fit replacement for the 1999-2021 Chevrolet Silverado 1500 and 1999-2021 GMC Sierra 1500. Check the "Vehicles it fits" section for your exact vehicle.
Where on the vehicle does this kit install?
It is cataloged for the rear position, where the U-bolts secure the leaf spring to the axle.
What are signs the U-bolts may need replacing?
Heavy corrosion, damaged threads, or U-bolts that have loosened can be signs. Have the rear suspension inspected to confirm the cause of any shifting or noise before replacing parts.
Can I reuse my old U-bolts or nuts during installation?
Consult the vehicle service information for the installation procedure, torque specifications and whether any original hardware may be reused.
