# Cognito 20-25 Chevrolet Silverado 2500 HD 1in Drop Leaf Spring Shackle

The Cognito 1” Drop Shackle for GM 2500/3500 trucks lowers the rear ride height by approximately 1”, allowing you to dial in your truck’s rake to meet your preferences. Made from quarter-inch steel plate and utilizing polyurethane pivot bushings, the Cognito drop shackle provides and improved ride quality over the vulcanized bushing found on OEM shackles.

-   \-Greasable and servicable polyurethane bushing provides increased ride quality over OEM-style vulcanized bushings
-   \-Allows customer to dial in ride height and stance
-   \-Increased strength and rigidity over OEM shackle
-   ∙Provides 1 inch of drop over OEM shackle
-   \-Quarter inch steel contruction

This Part Fits:

Year

Make

Model

Submodel

2020-2025

Chevrolet

Silverado 2500 HD

Custom

2020-2025

Chevrolet

Silverado 2500 HD

High Country

2020-2025

Chevrolet

Silverado 2500 HD

LT

2020-2025

Chevrolet

Silverado 2500 HD

LTZ

2020-2025

Chevrolet

Silverado 2500 HD

WT

2024-2025

Chevrolet

Silverado 2500 HD

ZR2

2020-2024

Chevrolet

Silverado 3500 HD

High Country

2020-2024

Chevrolet

Silverado 3500 HD

LT

2020-2024

Chevrolet

Silverado 3500 HD

LTZ

2020-2024

Chevrolet

Silverado 3500 HD

WT

2020-2025

GMC

Sierra 2500 HD

AT4

2024-2025

GMC

Sierra 2500 HD

AT4X

2020-2021

GMC

Sierra 2500 HD

Base

2020-2025

GMC

Sierra 2500 HD

Denali

2024-2025

GMC

Sierra 2500 HD

Denali Ultimate

2022-2025

GMC

Sierra 2500 HD

Pro

2020-2025

GMC

Sierra 2500 HD

SLE

2020-2025

GMC

Sierra 2500 HD

SLT

2020-2025

GMC

Sierra 3500 HD

AT4

2020-2021

GMC

Sierra 3500 HD

Base

2020-2025

GMC

Sierra 3500 HD

Denali

2024-2025

GMC

Sierra 3500 HD

Denali Ultimate

2022-2025

GMC

Sierra 3500 HD

Pro

2020-2025

GMC

Sierra 3500 HD

SLE

2020-2025

GMC

Sierra 3500 HD

SLT

## Details

- **Price:** 271.06 CAD
- **Vendor:** Cognito
- **Type:** Leaf Springs & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 271.06 CAD | In stock |

## Images

- Photo - Primary
- Photo - Close Up
- Photo - out of package
- Photo - Unmounted

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/cognito-20-25-chevrolet-silverado-2500-hd-1in-drop-leaf-spring-shackle)
> Updated: 2026-06-26