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Fabtech

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

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

$4,557.99 USD
$4,835.48 USD $4,557.99 USD
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Available on backorder

Shipping & returns

Orders over $99 ship free in the lower 48. Most in-stock gear leaves the warehouse the next business day. Wrong fitment? Send it back within 30 days — we'll help you find the part that does fit.

Fitment & build help

Not sure if this fits your platform? Tell us your year, make, model, and trim — we'll confirm before you order. For bigger builds, we'll help you plan the full stack.

Warranty

Every product on this site ships through authorized channels with full manufacturer warranty. If something breaks in normal use, we'll help you get it resolved.

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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.

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

  • Free shipping over $99

    Orders over $99 ship free in the lower 48. Most in-stock gear leaves the warehouse the next business day.

  • Wrong fitment? We make it right.

    If a part doesn't fit your platform the way it should, send it back. We handle the return and find you the part that does.

  • Authorized dealer support

    Every product moves through proper channels. Full manufacturer warranty, real tech support — no gray-market headaches.