Dorman 929-148 Leaf Spring - Rear

Durable Leaf Spring Assembly for Ford F-250 and F-350 Super Duty

The Dorman 929-148 leaf spring assembly is engineered to restore the rear suspension performance of your Ford F-250 Super Duty or F-350 Super Duty. Constructed from high-quality steel with black bushings included, this standard suspension grade leaf spring provides reliable support and consistent load handling.

Key Features of Dorman Leaf Spring Assembly 929-148

• Material: Heavy-duty steel construction for strength and durability
• Black bushings included for smooth axle articulation
• Standard suspension grade designed for rear axle orientation
• Four leaves with a 3-inch width and 4.1-inch pack thickness
• Leaf spring arch length of 7 inches for proper suspension geometry
• Berlin eye attachment type on both ends for secure mounting
• Load rate of 3200 lbs suitable for typical Super Duty payloads
• No axle modification required for installation

Detailed Description of the Dorman 929-148 Leaf Spring Assembly

This leaf spring assembly is specifically designed for the rear suspension of Ford F-250 Super Duty and F-350 Super Duty trucks. Featuring four steel leaves with a 3-inch width and a pack thickness of 4.1 inches, it provides a balanced combination of flexibility and strength. The black bushings included help reduce noise and wear, while the Berlin eye attachments ensure a secure fit without the need for axle modifications. With a load rate of 3200 lbs, this assembly supports the vehicle’s weight and payload effectively, maintaining proper ride height and handling characteristics.

Common Suspension Issues Addressed by This Leaf Spring Assembly

• Sagging or uneven rear suspension height
• Reduced load carrying capacity and stability
• Excessive rear-end bounce or poor ride quality
• Worn or damaged leaf springs causing noise or handling issues
• Corrosion or fatigue in original suspension components

Installation Notes and Tips

The Dorman 929-148 leaf spring assembly is designed for direct replacement on the rear axle of compatible Ford Super Duty trucks. No axle modifications are necessary, simplifying installation. Although bushings are included, mounting hardware is not, so ensure you have the appropriate bolts and fasteners on hand. Proper torque specifications should be followed to maintain suspension integrity and safety. It is recommended to have the installation performed by a qualified technician or experienced mechanic.

Quality Assurance and Warranty Information

Dorman manufactures this leaf spring assembly to meet or exceed OEM standards for material and performance. The steel construction and included bushings are tested for durability under typical load conditions. While specific warranty details may vary, Dorman generally offers limited warranties covering defects in materials and workmanship. Refer to Dorman’s official documentation for complete warranty terms.