Dorman 929-784 Leaf Spring Axle U-Bolt Kit - Rear

Dorman 929-784 Leaf Spring Axle U-Bolt Kit

Dorman 929-784 is a standard replacement leaf spring axle U-bolt kit built to secure the leaf spring or leaf spring bundle to the underside of a vehicle or trailer axle. It uses steel construction with a semi-gloss black finish and fine 3/4 in threads for a direct-fit suspension service part.

• Steel construction for suspension mounting strength
• Semi-gloss black finish
• 3/4 in thread diameter with fine thread type
• 5.5 in thread length
• 16.5 in inside length and 3.063 in inside width
• Bolt grade 8
• Nuts included
• Specific fit replacement part

Suspension Mounting Details

This leaf spring U-bolt kit is used to clamp the leaf spring assembly securely to the axle housing, helping maintain proper spring-to-axle location under load. Dorman 929-784 is built around the listed dimensions, so matching the leaf spring width, axle size, and thread specifications is essential before ordering. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Resolve

• Loose or worn leaf spring axle attachment points
• Corrosion-damaged U-bolts on suspension assemblies
• Incorrect clamp fit from mismatched axle hardware
• Leaf spring movement at the axle interface
• Service issues on trailer or truck rear suspension hardware

Installation Notes

Verify leaf spring dimensions, inside width, inside length, thread diameter, and thread length before installation. Replace axle clamp hardware in matched applications where the original U-bolts show stretching, rust, or thread damage. Confirm the vehicle or trailer suspension layout and torque fasteners to the manufacturer specification for the axle assembly.

Quality Assurance

Dorman supplies standard replacement suspension hardware engineered to match the listed dimensions and specifications for direct service use. Part number 929-784 is built as a specific-fit replacement for applications that call for this U-bolt configuration.