Dorman 43-1783HD Leaf Spring Assembly - Rear

Durable Leaf Spring Assembly for Ford F-150 Rear Suspension

The Dorman 43-1783HD leaf spring assembly is engineered to restore the rear suspension performance of your Ford F-150. Designed with heavy-duty applications in mind, this steel leaf spring pack offers reliable support and consistent load handling for trucks requiring a 2500 lb load rate.

• Constructed from high-quality steel for strength and durability
• Heavy-duty suspension grade designed for demanding use
• Includes five leaves with a 3-inch leaf width for balanced support
• Black powder-coated finish resists corrosion and wear
• Comes with black bushings pre-installed for smooth operation
• Rear axle orientation, no axle modification required
• Leaf spring arch length of 5.75 inches for proper suspension geometry
• Pack thickness of 2.416 inches and overall length of 31.625 inches

Detailed Description of Dorman 43-1783HD Leaf Spring Assembly

This Dorman leaf spring assembly (part number 43-1783HD) is specifically designed for the rear suspension of Ford F-150 trucks. The assembly features a five-leaf pack made from durable steel, providing a load rate of 2500 pounds suitable for heavy-duty applications. The black powder-coated finish enhances corrosion resistance, extending the service life of the spring. Black bushings are included and installed to reduce noise and vibration, ensuring a smoother ride. The spring’s arch length and pack thickness are engineered to maintain proper suspension geometry without requiring axle modifications.

Common Applications and Problem Solving

• Restores sagging or worn rear suspension springs on Ford F-150 models
• Improves load carrying capacity for trucks used in heavy-duty or towing scenarios
• Eliminates uneven ride height caused by fatigued leaf springs
• Reduces rear-end bounce and improves vehicle stability under load
• Replaces damaged or corroded leaf spring assemblies to maintain safe suspension performance

Installation Notes and Tips

The Dorman 43-1783HD leaf spring assembly is designed for direct replacement on the rear axle of compatible Ford F-150 trucks. No axle modifications are necessary, simplifying installation. It is recommended to inspect mounting points and hardware during installation and replace any worn components separately, as mounting hardware is not included. Proper torque specifications should be followed to ensure secure fitment and optimal suspension performance.

Quality Assurance and Warranty Information

Dorman manufactures this leaf spring assembly to meet or exceed OEM standards for durability and performance. The steel construction and corrosion-resistant coating contribute to long service life. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.