Dorman 929-811 Leaf Spring Axle U-Bolt Kit - Rear

Dorman 929-811 Leaf Spring Axle U-Bolt Kit

Dorman 929-811 is a leaf spring axle U-bolt kit built for rear suspension service on select Ford Super Duty trucks. It secures the leaf spring or leaf spring pack to the underside of the axle, helping restore proper clamping force in the suspension assembly.

• Steel construction with a semi-gloss black finish
• Grade 8 bolt specification for demanding suspension use
• Fine 5/8 in thread diameter with 5.5 in thread length
• Inside dimensions: 15.625 in length and 3.219 in width
• Specific-fit replacement for select Ford rear applications
• Nuts included

Fitment Details

Compatible with rear suspension applications on 2008-2020 Ford F-350 Super Duty, rear, Semi-Round Bend, and 2008-2018 Ford F-250 Super Duty, rear, Semi-Round Bend. If you are searching for a Ford F-350 Super Duty rear leaf spring U-bolt kit or a Ford F-250 Super Duty rear axle U-bolt replacement, Dorman 929-811 is built around those confirmed applications.

Application and Use

This part is used to secure the leaf spring assembly to the axle housing in rear suspension setups. It can help address common service issues such as:

• Loose or weakened leaf spring-to-axle clamping
• Corrosion-damaged or fatigued U-bolts
• Suspension noise from worn mounting hardware
• Uneven rear suspension attachment after repair work
• Need for a direct replacement during leaf spring service

Installation Notes

Verify leaf spring dimensions, inside length, inside width, thread diameter, and thread length before ordering. Confirm the rear axle configuration and semi-round bend application details on the vehicle before installation. For best results, replace suspension hardware according to service procedures and torque specifications for the specific Ford F-250 Super Duty or Ford F-350 Super Duty application.

Quality Assurance

Dorman 929-811 is a standard replacement suspension hardware kit engineered to match the listed fitment and dimensional requirements. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.