Sierra 2500HD/3500HD 2020-2026 GMC 1" Drop Rear Shackles (pair) by Cognito

The Cognito 1" Rear Drop Shackles (110-91267) are designed for 2020–2026 GMC Sierra 2500HD/3500HD trucks, providing an easy way to fine-tune rear ride height and overall vehicle stance.

These shackles lower the rear of the truck by approximately 1 inch, helping reduce factory rake or allowing you to dial in the exact stance you want after installing a leveling kit or front lift. This small adjustment can make a noticeable difference in the overall appearance of the vehicle while maintaining proper suspension geometry.

Constructed from 1/4-inch thick steel plate, the Cognito drop shackles offer increased strength and rigidity compared to the factory components. They also feature serviceable polyurethane pivot bushings, which provide improved ride quality and durability compared to the OEM vulcanized rubber bushings.

The result is a stronger, more adjustable rear suspension component that improves both appearance and ride quality while maintaining long-term durability.

Features & Benefits

• Provides approximately 1" rear drop compared to OEM shackles
• Helps dial in vehicle rake and stance
• Constructed from heavy-duty 1/4" steel plate
• Increased strength and rigidity over factory shackles
• Serviceable polyurethane pivot bushings
• Improved ride quality compared to OEM vulcanized bushings
• Durable design built for heavy-duty trucks