Dorman 43-1783 Leaf Spring Assembly - Rear

Durable Leaf Spring Assembly for Ford F-150 Rear Suspension

The Dorman 43-1783 leaf spring assembly is engineered to restore the rear suspension performance of your Ford F-150. Constructed from high-quality steel with a black finish, this replacement leaf spring pack offers reliable support and consistent load handling for your truck.

• Material: Heavy-duty steel construction for strength and durability
• Color: Black powder-coated finish to resist corrosion
• Leaf Quantity: 4 leaves with a 3-inch width for balanced suspension support
• Load Rate: 1900 lbs to maintain proper ride height and handling
• Bushing Color: Black bushings included for smooth articulation
• Axle Orientation: Designed specifically for rear axle installation
• Standard replacement grade suspension component
• No axle modification required for installation

Product Details and Specifications

This Dorman leaf spring assembly (part number 43-1783) is designed as a direct replacement for the rear suspension of Ford F-150 trucks. The assembly features four steel leaves, each 3 inches wide, stacked to provide a pack thickness of approximately 2.128 inches. The leaf spring arch length measures 7.875 inches, ensuring proper suspension geometry and ride quality. The black bushings included help reduce noise and wear, contributing to a smoother driving experience. This standard grade replacement does not include a helper spring and requires no axle modifications, making it a straightforward upgrade for your vehicle's rear suspension system.

Common Applications and Problem Solving

• Restores sagging or worn rear suspension on Ford F-150 models
• Improves load carrying capacity and vehicle stability
• Addresses uneven ride height or poor handling due to leaf spring fatigue
• Replaces corroded or damaged leaf springs to prevent suspension failure
• Eliminates excessive rear-end bounce and improves overall ride comfort

Installation Notes and Tips

Installation of the Dorman 43-1783 leaf spring assembly is designed to be a direct replacement with no axle modifications required. Ensure the vehicle is safely supported and the rear axle is properly aligned before removing the old leaf springs. Since mounting hardware is not included, reuse existing bolts or acquire new hardware as needed. Proper torque specifications should be followed to maintain suspension integrity and safety.

Quality Assurance and Warranty

Dorman manufactures this leaf spring assembly to meet or exceed OEM standards for material and performance. The steel construction and corrosion-resistant black finish contribute to long service life. Bushings are included to ensure proper fit and function. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.