# Fabtech 19-20 GM C/K1500 P/U w/Trail Boss/At4 Pkg 4in Perf Sys w/Dl 2.5 & 2.25

The Chevy 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 at the same height as a 1500 with a 6 in. suspension and 35 in. tires. 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 stainless steel Dirt Logic 2.5 Coilovers replace the Trail Boss or AT4 coilover with an outstanding ride quality both on and offroad. They are designed for aggressive offroad use yet have a supple on road feel. Rear Dirt Logic 2.25 shocks aid in damping the vehicle for a balanced ride. 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 full suspension travel with 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
-   No Driveshaft Change Required For Auto Trac
-   Allows Use Of Stock Tires And Wheels
-   Retains Factory Steering Centerlink
-   Retains Factory Upper Control Arms
-   Increased Caster For More Control
-   Quick No Weld Installation

This Part Fits:

Year

Make

Model

Submodel

2019-2021

Chevrolet

Silverado 1500

Custom

2019-2021

Chevrolet

Silverado 1500

Custom Trail Boss

2019-2021

Chevrolet

Silverado 1500

High Country

2019-2021

Chevrolet

Silverado 1500

LT

2019-2021

Chevrolet

Silverado 1500

LT Trail Boss

2019-2021

Chevrolet

Silverado 1500

LTZ

2019-2021

Chevrolet

Silverado 1500

RST

2019-2021

Chevrolet

Silverado 1500

SSV

2019-2021

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

2019-2021

GMC

Sierra 1500

Base

2019-2021

GMC

Sierra 1500

Denali

2019-2021

GMC

Sierra 1500

Elevation

2019-2021

GMC

Sierra 1500

SLE

2019-2021

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:** 5649.75 CAD
- **Vendor:** Fabtech
- **Type:** Coilovers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 5649.75 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-perf-sys-w-dl-2-5-2-25)
> Updated: 2026-06-27