Dorman 722-122 Leaf Spring Shackle - Rear Rearward

Durable Leaf Spring Shackle for Chevrolet and GMC Trucks

The Dorman 722-122 leaf spring shackle is engineered to provide reliable suspension support for heavy-duty Chevrolet and GMC trucks. Designed specifically for models like the Sierra 2500 HD, Sierra 3500 HD, Silverado 2500, Silverado 2500 HD, Silverado 3500, and Silverado 3500 HD, this shackle ensures proper leaf spring movement and vehicle stability.

• Constructed from high-strength steel for durability
• Includes black bushings with 1.93 inch outside diameter and 0.64 inch inside diameter
• Comes with mounting hardware: 1 mounting plate, 1 bushing, 2 nuts, and 2 bolts
• Standard grade steel bolts with 16 mm diameter and 5.11 inch length
• Shackle width measures 6.3 inches for precise fitment

Technical Details and Specifications

The Dorman 722-122 leaf spring shackle features steel construction for both the shackle and bolts, ensuring strength and resistance to wear under heavy loads. The included bushings are black and measure 1.93 inches in outside diameter, 0.64 inches inside diameter, and 2.85 inches in length, providing proper cushioning and reducing metal-to-metal contact. Bolts are standard grade steel with a silver finish, 16 mm in diameter, 5.11 inches long, and a thread length of 1.96 inches. This shackle assembly includes all necessary mounting hardware for straightforward installation.

Compatible Vehicles and Applications

This leaf spring shackle is compatible with select Chevrolet and GMC heavy-duty trucks, including:

• Chevrolet Sierra 2500 HD and 3500 HD
• Chevrolet Silverado 2500, 2500 HD, 3500, and 3500 HD
• GMC Sierra 2500 HD and 3500 HD

It is designed to maintain proper suspension articulation and support the leaf springs under demanding conditions.

Common Suspension Issues Addressed

• Worn or damaged leaf spring shackles causing suspension noise or instability
• Excessive play or movement in the leaf spring assembly
• Corroded or weakened mounting hardware affecting suspension integrity
• Uneven tire wear due to improper suspension alignment
• Reduced ride quality and handling performance

Installation Notes and Tips

Installation of the Dorman 722-122 leaf spring shackle requires basic suspension tools and mechanical knowledge. It is recommended to replace both shackles on the same axle to maintain balanced suspension performance. Ensure all mounting hardware is torqued to manufacturer specifications. The included bushings should be properly seated to avoid premature wear.

Quality Assurance and Warranty

Dorman manufactures this leaf spring shackle to meet or exceed OEM standards for fit, form, and function. The steel construction and included bushings are designed for durability and long service life. This product comes with a limited warranty against defects in materials and workmanship, providing confidence in its reliability for Chevrolet and GMC Sierra and Silverado heavy-duty trucks.