4 Inch Lift Kit For 25-Up Silverado/Sierra 1500 Custom Trail Boss/LT Trail Bass/AT4 4WD 3 Inch Rear Block Spacer Front Fox 2.0 ADV Series Rear Shock Zone Offroad

Take your Chevy Trail Boss / GMC AT4 to new heights with this 4 inch lift kit from Zone Offroad. This kit nets 4 inch over stock, so due to the 2 inch factory lift will sit similar to a standard truck with 6 inch 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 inch tires.
Features and Benefits

• Maintains on-road handling while improving off-road 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.
• Optionl FOX Adventure Series 2.0 rear shocks.

Recommended Tires and Wheels

• (Trimming may be required)
• 35 x 12.5 with 18 x 9 and 4.5 in. Backspace
• 35 x 12.5 with 22 x 9 and 4.5 in. Backspace

FOX 2.0 Adventure Series

• 2-inch diameter steel body
• Internal floating piston (IFP) monotube design
• Large 5/8-inch hard chrome plated heat-treated alloy steel shaft
• Race-developed high-flow piston design
• Application-specific valving to maximize performance
• Long-lasting silver coated finish

Notes:

• All aftermarket wheels should be test fit prior to mounting the tire to ensure proper clearance to the brake caliper.
• Requires frame bracket modification.
• Will Not work with ZR2 and AT4X models.
• Fits Gas and Diesel Models.
• Will not fit Adaptive Ride Control (ARC) equipped models.
• This system has not been tested on models equipped with Super Cruise.

Optional front skid plate will not work with 2.7L Turbo or Diesel Engines.
Specs

• Front Lift Method: Cross Member and Strut Spacer
• Front Lift Height: 4 inch
• Rear Lift Method: Block
• Rear Lift Height: 3 inch
• Shocks Included: Yes
• Lift Height: 4-5.5 inch

Kit Components
FOX98450759 2 Fox Adv Shock 30.05 x 18.46 x 2-EB1/EB1
ZONC2405 1 2025 Chevy TB/GMC AT4 1500 4 Inch Front Box Kit
ZONC2662 1 2019-2024 Chevy/GMC 1500 Front Box Kit
ZONC2672 1 2019-2024 Chevy/GMC 1500 Knuckle Box Kit 1 w/UCA (4 Inch and 6 Inch Compatible)
ZONC2673 1 2019-2024 Chevy/GMC 1500 Knuckle Box Kit 2 w/UCA (4 Inch and 6 Inch Compatible)

Installation Instructions