Dorman 929-742 Leaf Spring Axle U-Bolt Kit - Front or Rear

Dorman 929-742 Leaf Spring Axle U-Bolt Kit

Dorman 929-742 is a standard replacement leaf spring axle U-bolt kit for securing the leaf spring or leaf spring pack to the underside of the axle. Built from steel with a semi-gloss black finish, it uses a 9/16 in fine thread, Grade 5 bolt construction, and a specific fit for selected rear and front round-bend applications.

• Steel construction with semi-gloss black finish
• 9/16 in fine-thread design
• Grade 5 bolt specification
• Inside length: 8.75 in
• Inside width: 3.25 in
• Specific fit replacement for selected applications
• Nuts included

Application Details

This Dorman 929-742 U-bolt kit is used on a range of Ford, Mazda, and Dodge trucks and SUVs with round-bend leaf spring mounting. It is listed for rear applications on the 2004-2011 Ford Ranger, 2004-2010 Mazda B2300, 2004-2010 Mazda B4000, 2004-2008 Mazda B3000, 1997 Ford F-250 HD, 1975-1997 Ford F-350, 1975-1996 Ford F-150, 1973-1996 Ford F-250, 1978-1993 Ford Bronco, and 1973-1983 Ford F-100. Front applications include the 1974-1993 Dodge Ramcharger, 1977-1993 Dodge W150, 1981-1993 Dodge W250, 1981-1993 Dodge W350, 1984-1989 Dodge W100, 1975-1977 Dodge W100, 1975-1980 Dodge W200, and 1975-1980 Dodge W300.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Loose or worn leaf spring axle attachment points
• Corrosion-damaged U-bolts on rear or front suspension mounts
• Incorrect clamp fit from mismatched U-bolt dimensions
• Suspension noise caused by weakened spring-to-axle clamping
• Service replacement needs on Ford Ranger, Ford F-150, Ford F-250, Ford F-350, and Mazda B-Series trucks

Installation Notes

Verify leaf spring dimensions, axle tube shape, inside length, inside width, thread diameter, and thread length before installation. Confirm round-bend application details and position before ordering. Use the vehicle-specific fitment data for the exact year, make, and model match, including rear Ford Ranger and Mazda B-Series applications and front Dodge Ramcharger and W-series applications.

Quality Assurance

Dorman supplies this as a standard replacement suspension component built to match the listed application requirements. Part number 929-742 is engineered for specific fitment and direct replacement use on the vehicles shown above.