Dorman 43-1339 Leaf Spring Assembly - Rear

Durable Dorman Leaf Spring Assembly for Rear Suspension

The Dorman 43-1339 leaf spring assembly is engineered to provide reliable rear suspension support for compatible vehicles. Constructed from high-quality steel with a black finish, this assembly is designed to maintain vehicle stability and load capacity under demanding conditions.

• Made from durable steel material with a corrosion-resistant black coating
• Includes 11 leaves with a 3-inch width for balanced load distribution
• Standard replacement grade suspension component with a 5100 load rate
• Equipped with black bushings to reduce noise and vibration
• Designed for rear axle orientation with no axle modification required
• Leaf spring arch length of 1.5 inches and pack thickness of 4.704 inches

Technical Details and Construction

The Dorman 43-1339 leaf spring assembly features an 11-leaf pack constructed from high-strength steel, ensuring durability and consistent performance. The black finish helps resist corrosion, extending the lifespan of the component. This assembly is designed as a standard replacement part, matching original equipment specifications for rear suspension systems. The included black bushings help absorb road shocks and reduce suspension noise, contributing to a smoother ride. With a load rate of 5100, this leaf spring assembly supports substantial weight, making it suitable for vehicles requiring reliable rear suspension support without the need for helper springs or axle modifications.

Common Applications and Problem Solving

• Replacement for worn or broken rear leaf springs
• Restores proper vehicle ride height and handling
• Addresses sagging suspension under heavy loads
• Eliminates excessive suspension noise and vibration
• Improves rear axle stability and load distribution

Installation Notes and Tips

Installation of the Dorman 43-1339 leaf spring assembly requires standard suspension tools and mechanical knowledge. No axle modifications are necessary, simplifying the replacement process. It is recommended to inspect related suspension components such as shackles and U-bolts during installation. Proper torque specifications should be followed to ensure safety and performance. Since mounting hardware is not included, reuse existing hardware if in good condition or purchase new hardware separately.

Quality Assurance and Warranty

Dorman manufactures this leaf spring assembly to meet or exceed OEM standards for durability and performance. The steel construction and corrosion-resistant finish 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.