Dorman 929-734 Leaf Spring Axle U-Bolt Kit - Rear

Dorman 929-734 Leaf Spring Axle U-Bolt Kit

Dorman 929-734 is a standard replacement leaf spring axle U-bolt kit for rear suspension applications that use a round-bend U-bolt design. It secures the leaf spring or leaf spring bundle to the underside of the axle on select Ford F-250 Super Duty, Ford F-350 Super Duty, Ford F-150, and related Chevrolet and GMC van and truck applications.

• Steel construction with a semi-gloss black finish
• Grade 8 bolt specification for demanding suspension service
• 5/8 in fine-thread diameter with 3.5 in thread length
• Inside dimensions: 9.5 in length and 3.625 in width
• Specific-fit replacement for rear round-bend applications
• Nuts included

This Dorman 929-734 leaf spring axle U-bolt kit is built around the dimensions and hardware style needed to clamp the leaf spring pack securely to the axle housing. It is a direct-fit suspension hardware solution for rear applications on 1999-2016 Ford F-250 Super Duty and Ford F-350 Super Duty models, as well as select Ford F-150, Excursion, Chevrolet G10/G20/G30, and GMC G-series van platforms. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Uses

• Replacing stretched, corroded, or damaged rear axle U-bolts
• Restoring proper clamping force between the leaf spring pack and axle
• Addressing suspension noise caused by loose or worn spring hardware
• Servicing rear leaf spring mounting hardware during axle or spring work
• Matching round-bend rear suspension hardware on compatible Ford, Chevrolet, and GMC vehicles

Installation Notes

Verify leaf spring dimensions, inside width, inside length, thread diameter, and bend style before installation. Confirm rear application details and axle configuration on the vehicle, since this kit is specific to round-bend fitments. Use the correct torque procedure for Grade 8 suspension hardware and recheck fastener torque after initial road use.

Quality Assurance

Dorman manufactures this part as a standard replacement suspension hardware component with steel construction and Grade 8 bolt specification. The design follows the application details needed for secure leaf spring-to-axle attachment on the listed vehicles.