Zone 4" Suspension Lift Kit 19-21 GM Trail Boss/ AT4 1500 Trucks- Fox Adventure Shocks

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 wil lsit 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.

All Zone Offroad kits include Factory Protection Plus for the ultimate extended warranty to include Zone Offroad's Limited Lifetime Warranty, FMVSS No.126 (ESC System) compliance certification and a 5year-100mile drivetrain warranty to match the dealer. Improve the look and capability of your 2019 Chevy/GMC 1500 truck with this new 6" lift system from Zone Offroad.

The NHTSA's Federal Motor Vehicle Safety Standard (FMVSS) No.126 requires all new passenger vehicles to include Electronic Stability Control (ESC) systems that meet certain standards that can be tested through a comprehensive series of evasive maneuvers. Aftermarket products must meet these standards as well.

Zone Offroad Products is leading the industry by independently testing all suspension kits to verify the kits are fully compliant with the stability control system requirements set by Federal Motor Vehicle Safety Standard (FMVSS) No. 126.

Featured Technology & Benefits

• Heavy duty crossmembers with differential skid plate
• Specially designed steering knuckles maintain ESC compatibility
• Maintains ride quality and handling characteristics
• Factory Protection Plus included
• Allows clearance for 35-37" tires

• 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