Dorman 43-1339HD Leaf Spring Assembly - Rear

Durable Dorman Leaf Spring Assembly for Rear Suspension

The Dorman 43-1339HD leaf spring assembly is engineered for heavy-duty rear suspension applications. Constructed from high-quality steel with a black finish, this assembly is designed to provide reliable load support and improved vehicle stability.

• Heavy-duty suspension grade with a 7200 lb load rate
• Constructed from durable steel material with black bushings included
• Consists of 10 leaves, each 3 inches wide, with a 1.5 inch arch length
• Rear axle orientation, no axle modification required
• Pack thickness of 4.99 inches and length of 23.875 inches

Technical Details and Construction

This Dorman leaf spring assembly (part number 43-1339HD) features a robust 10-leaf pack made from steel, ensuring strength and longevity under heavy loads. The black bushings included help reduce noise and vibration, contributing to a smoother ride. Designed specifically for rear axle suspension setups, this assembly requires no axle modifications for installation. The 7200 lb load rate supports demanding applications, making it suitable for trucks and vehicles requiring enhanced suspension performance.

Common Applications and Problem Solving

• Replaces worn or broken leaf springs in rear suspension systems
• Addresses sagging or uneven vehicle stance under heavy loads
• Improves load carrying capacity and vehicle stability
• Reduces suspension noise and vibration through included bushings
• Restores proper ride height and handling characteristics

Installation Notes and Tips

Installation of the Dorman 43-1339HD leaf spring assembly is straightforward for rear axle suspension systems. No axle modifications are necessary, but ensure proper alignment and torque specifications are followed. Since mounting hardware is not included, reuse existing hardware if in good condition or source appropriate replacements. It is recommended to inspect related suspension components during installation for optimal performance.

Quality Assurance and Warranty

Dorman manufactures this leaf spring assembly to meet or exceed OEM standards for durability and performance. The steel construction and heavy-duty design provide reliable service life under demanding conditions. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.