Dorman 90-577 Leaf Spring Assembly - Rear Right

Durable Leaf Spring Assembly for Toyota Tacoma

The Dorman 90-577 leaf spring assembly is engineered to restore the suspension performance of your Toyota Tacoma. Constructed from high-quality steel with a black finish, this replacement leaf spring assembly offers reliable support and durability for rear axle suspension needs.

• Made from robust steel material for long-lasting strength
• Includes four leaves with a 2.375-inch width for balanced load distribution
• Black bushings included to reduce noise and vibration
• Standard replacement suspension grade designed for direct fitment
• Rear axle orientation with no axle modification required
• Load rate of 1175 lbs suitable for typical Tacoma suspension demands
• Leaf spring arch length of 5.75 inches for proper ride height and support

Product Details and Specifications

This Dorman leaf spring assembly (part number 90-577) is designed specifically for the rear suspension of Toyota Tacoma trucks. The assembly features four steel leaves, each 2.375 inches wide, stacked to provide a pack thickness of 1.673 inches. The black bushings included help minimize suspension noise and wear, ensuring a smoother ride. With a load rate of 1175 pounds, this leaf spring assembly meets standard replacement requirements without the need for axle modifications or helper springs. The 27.563-inch length on both axes and a 5.75-inch arch length maintain proper suspension geometry and vehicle height.

Common Applications and Problem Resolution

• Restores sagging or worn rear suspension on Toyota Tacoma models
• Addresses uneven ride height and poor load handling
• Replaces broken or cracked leaf springs to improve vehicle stability
• Eliminates excessive suspension noise caused by worn bushings
• Improves rear axle alignment and suspension response

Installation Notes and Tips

Installation of the Dorman 90-577 leaf spring assembly requires standard suspension tools and mechanical knowledge. No axle modifications are necessary, making it a direct replacement for compatible Toyota Tacoma models. Ensure the vehicle is safely supported and the old leaf springs are removed carefully to avoid damage to surrounding components. Since mounting hardware is not included, reuse existing hardware if in good condition or source new hardware separately for secure installation.

Quality Assurance and Warranty

Dorman manufactures this leaf spring assembly to meet or exceed OEM standards for durability and performance. The steel construction and quality bushings contribute to a reliable suspension component designed for long-term use. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.