2019-21 4WD Chevy Silverado Trail Boss, GMC Sierra AT4 1500 4" lift kit, Stealth Monotube shocks

$1,936.93
Product No
K1136M-FT
FREE SHIPPING Lower 48 States

Important Notes

Can not use OEM wheel and tire
Fits crew cab, short bed models only
Will not fit models equipped with adaptive ride control

Quick Overview

The new GM Silverado Trail Boss and Sierra AT4 models come with a factory 2" lift. By installing the Fabtech 4" lift kit, the result will be the same as non-Trail Boss and non-AT4 models that have a 6" lift kit. This allows for 35" tires. The IFS suspension design for the Silverado and Sierra 1500 has a number of features that make this Fabtech lift kit the one to choose. Expect improved on and off-road driving with zero bump steer that reduces driver fatigue. A clean appearance is achieved by keeping the tires under the fenders and near stock track width with Fabtech's proprietary steering knuckle geometry. Tight spots can be maneuvered easily with lock to lock turning radius. The crossmembers are 1/4" thick steel with OE style alignment cam pins that use the factory cams for easy adjustment. High speed vibration is eliminated with the triple front differential mounts that reposition the differential. By relocating the factory coilover shocks from the bottom, this allows for 4" of lift while retaining full steer. The factory 2" rear block is replaced with a 5" rear block kit.

Kit Components
1/4" thick steel lower control arm Crossmembers
Extended length ductile iron Steering Knuckles
Oversized tie rods
Heavy duty lower coilover spacers
Front differential Skid Plate
Triple Differential Mounts
Front sway bar drop brackets
Billet rear bump stop spacers
5" steel rear block kit
Rear Stealth series shocks

Kit Features

Increased ground clearance
More level stance
Near stock track width
No stacking rear blocks


35/12.50R18 Wheel Size – 18×9 w/ 5″ BS w/minor trimming
295/70R18 Wheel Size – 18×9 w/ 5″ BS w/minor trimming
35/12.50R20 Wheel Size – 20×9 w/ 5″ BS w/minor trimming 
295/65R20 Wheel Size – 20×9 w/ 5″ BS w/minor trimming

This Fabtech lift kit is covered by their FIVE SIXTY Powertrain Warranty. See Details

    • Make: Chevrolet, GMC
    • Model: 1500
    • Vehicle: 2019-21 Silverado Trail Boss, Sierra AT4 1500 4" lift kit, Monotube shocks
    • 2or4: 4WD
    • Initialize: 1

Fabtech lift kit fits the following models:
2019 Chevy Silverado Trail Boss 1500
2020 Chevy Silverado Trail Boss 1500
2021 Chevy Silverado Trail Boss 1500

2019 GMC Sierra AT4 1500
2020 GMC Sierra AT4 1500
2021 GMC Sierra AT4 1500

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