Keep the rear leaf springs clamped securely to the axle with the Dorman - OE Solutions Leaf Spring Axle U-Bolt Kit 929-779, a direct-fit replacement for the rear leaf spring axle on the 1999-2016 Ford F-250 Super Duty, 1999-2016 Ford F-350 Super Duty and 2008-2016 Ford F-450 Super Duty. See the "Vehicles it fits" section for engine and trim details.
This U-bolt repair kit wraps around the axle to clamp the leaf spring pack in place, which helps keep the axle located under the truck. If the original U-bolts are loose, corroded or have damaged threads, this kit provides the replacement clamping hardware.
- Reliable hardware: The kit's components are designed to hold the leaf spring or leaf spring bundle securely to the underside of the axle.
- Check fit: Review your leaf spring dimensions and other application details to confirm this is the right type and size of U-bolt kit for your needs.
- Durable construction: Engineered from quality materials for dependable performance and long service life.
- Trustworthy quality: Supported by a U.S.-based team of product experts and more than a century of automotive experience.
For installation, tighten the U-bolt nuts evenly to the torque and sequence given in the vehicle's service information, and consult that information on whether original hardware may be reused.
Interchange: 361-658
361658
Frequently Asked Questions
Which trucks does the Dorman 929-779 U-bolt kit fit?
It fits the rear leaf spring axle on the 1999-2016 Ford F-250 Super Duty, 1999-2016 Ford F-350 Super Duty and 2008-2016 Ford F-450 Super Duty. See the "Vehicles it fits" section for engine and trim details.
What does a leaf spring axle U-bolt kit do?
The U-bolts wrap around the axle and clamp the leaf spring or leaf spring bundle to its underside, helping keep the axle located under the vehicle.
What are signs the U-bolts may need replacing?
Signs include a clunk or shift from the rear axle, loose U-bolt nuts, heavy rust, or stretched or damaged threads. If worn U-bolts are the cause, this kit replaces them.
How do I confirm this is the right size kit?
Dorman recommends checking your leaf spring dimensions and other application details to select the right type and size of U-bolt kit before ordering.
Any tips for installing leaf spring U-bolts?
Tighten the nuts evenly to the torque and sequence in the vehicle's service information, and follow that information on whether any original hardware may be reused.
