# Fabtech 19-20 GM C/K1500 P/U w/Trail Boss/At4 Pkg 4in Basic Sys w/Stealth

The Chevrolet Trail Boss and GMC AT4 both have a factory 2 in. lift compared to other GM 1500 trucks of the same year model. Fabtech's suspension system for these two trucks provide a 4 in. lift height on top of the factory 2 in. lift for clearance of 35 in. tall tires. Once a Trail Boss or AT4 is lifted with a Fabtech 4 in. system, the truck will sit the same height as a 1500 with a 6 in. suspension and 35 in. tires. Fabtech's suspension design for the Trail Boss and AT4 provides excellent drive ability both on and offroad. There is zero bump steer throughout the suspension cycle that helps reduce drive fatigue while improving the overall drive ability of the vehicle. The near stock track width keeps the tires under the fenders for a clean appearance. Fabtech's proprietary steering knuckle geometry provides excellent lock to lock turning radius to maneuver in tight spots. Heavy duty 1/4 in. thick steel crossmembers feature OE style alignment cam pins that utilize the factory cams for easy adjustment. Triple front diff mounts reposition the differential for vibration free operation at high speed. The factory Trail Boss and AT4 coilover shocks are retained and relocated from the bottom to allow for full steer while achieving 4 in. of lift. Rear lift is accomplished by removing the factory 2 in. block and replacing it with a 5 in. block and u-bolt system. Fabtech has addressed all aspects of the Trail Boss suspension for proper wheel travel and lock to lock steering without over cycling. Comes with a free 5 year 60,000 mile Powertrain Warranty.

-   Everything You Will Need To Lift Your Vehicle
-   Designed For The Budget Minded Enthusiast
-   Utilizes The Stock Radius Arm

This Part Fits:

Year

Make

Model

Submodel

2020-2021

Chevrolet

Silverado 1500

Custom

2019-2021

Chevrolet

Silverado 1500

Custom Trail Boss

2020-2021

Chevrolet

Silverado 1500

High Country

2020-2021

Chevrolet

Silverado 1500

LT

2019-2021

Chevrolet

Silverado 1500

LT Trail Boss

2020-2021

Chevrolet

Silverado 1500

LTZ

2020-2021

Chevrolet

Silverado 1500

RST

2020-2021

Chevrolet

Silverado 1500

SSV

2020-2021

Chevrolet

Silverado 1500

WT

2022

Chevrolet

Silverado 1500 LTD

Custom

2022

Chevrolet

Silverado 1500 LTD

Custom Trail Boss

2022

Chevrolet

Silverado 1500 LTD

High Country

2022

Chevrolet

Silverado 1500 LTD

LT

2022

Chevrolet

Silverado 1500 LTD

LT Trail Boss

2022

Chevrolet

Silverado 1500 LTD

LTZ

2022

Chevrolet

Silverado 1500 LTD

RST

2022

Chevrolet

Silverado 1500 LTD

SSV

2022

Chevrolet

Silverado 1500 LTD

WT

2019-2021

GMC

Sierra 1500

AT4

2020-2021

GMC

Sierra 1500

Base

2020-2021

GMC

Sierra 1500

Denali

2020-2021

GMC

Sierra 1500

Elevation

2020-2021

GMC

Sierra 1500

SLE

2020-2021

GMC

Sierra 1500

SLT

2022

GMC

Sierra 1500 Limited

AT4

2022

GMC

Sierra 1500 Limited

Denali

2022

GMC

Sierra 1500 Limited

Elevation

2022

GMC

Sierra 1500 Limited

Pro

2022

GMC

Sierra 1500 Limited

SLE

2022

GMC

Sierra 1500 Limited

SLT

## Details

- **Price:** 3224.6 CAD
- **Vendor:** Fabtech
- **Type:** Lift Kits

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3224.60 CAD | In stock |

## Images

- Photo - Primary
- Photo - Mounted

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/fabtech-19-20-gm-c-k1500-p-u-w-trail-boss-at4-pkg-4in-basic-sys-w-stealth)
> Updated: 2026-06-27