2019-2023 Chevy/GM Trail Boss / AT4 1500 4wd 4 Suspension System

---

Take your Chevy Trail Boss / GMC AT4 to new heights with this 4" lift kit from Zone Offroad. This kit nets 4" over stock, so due to the 2" factory lift will sit similar to a standard truck with 6" of lift. Kits include everything needed from high strength crossmembers and steering knuckles to strut spacers, upper control arms and differential relocation brackets to maintain driveline angles. Get the look, performance, and capability your truck deserves with clearance for up to 35" tires.

• Maintains on-road handling while improving offroad performance
• Heavy duty crossmembers and skid plates for protection
• New steering knuckles add strength and allow ESC system compatibility
• Top mounted front strut spacer retains factory ride quality
• Adventure Series upper control arms for additional strength and durability
• Allows fitment of 35-37" tires

---

Information:

17" wheels with 4.5" backspacing should be test fit prior to mounting the tire to ensure proper clearance to the steering knuckle/tie rod. All aftermarket wheels should be test fit prior to mounting the tire to ensure proper clearance to the brake caliper. Factory 17" and 18" wheels cannot be reinstalled due to tie rod end interference, stock 20" wheels can be reinstalled. Requires frame bracket modification. Some wheel profiles will not clear the brake caliper. These can be test fitted before the vehicle is lifted in a stock condition. Fits Gas and Diesel Models. Will not fit Adaptive Ride Control (ARC) equipped models. Tire and Wheel Fitment: Chevy: 33 x 12.50 on 17x8, 17x9 w/ 4.5" BS 33 x 12.50 on 20x9, 22x9 w/ 4.5-6.25" BS 35 x 12.50 on 20x9, 22x9 w/ 5.5-6.25" BS 37 x 12.50 on 20x9, 22x9 w/ 5.5" BS GMC: 295/65 on 17x8, 17x9 w/ 4.5" BS 295/60 on 20x9 w/ 4.5-6.25" BS 35 x 12.50 on 20x9, 22x9 w/ 5.5-6.25" BS

---

Application Summary:

Year	Make/Model
2019-2023	Chevrolet Silverado 1500
2019-2023	GMC Sierra 1500