Fabtech K1152M 1.5" Budget Lift Kit with Stealth Shocks 2019-2020 GM 1500 Trail Boss AT4

The Fabtech K1152M Budget Lift System is designed specifically for 2019-2020 GM K1500 pickup trucks equipped with the factory Trail Boss or AT4 package. This 1.5-inch front lift kit is engineered to provide additional ride height and clearance for full-size 33x12.50 tires on 18-inch or 20-inch wheels.

How It Works:

Trail Boss and AT4 models come with a factory 2-inch lift from GM. This kit adds an additional 1.5 inches of front lift, bringing the total ride height to the equivalent of a 3.5-inch lift on standard GM 1500 models. The lift is achieved through a precision-engineered aluminum spacer at the top of the strut assembly and a carefully calculated preload spacer positioned under the factory coilover spring. This design maintains proper coilover positioning, preventing coil bind and over-extension that can cause premature suspension wear.

Key Components:

• Tubular upper control arms with heavy-duty ball joints to correct suspension geometry and ensure proper wheel alignment at the new ride height
• Aluminum front strut spacers for precise lift height
• Coil preload spacers to maintain factory coilover travel
• 1-inch rear lift blocks and u-bolts (optional installation for leveling)
• Stealth monotube rear shocks with Nitrocarb piston rods for superior corrosion resistance and rock chip protection

Performance Benefits:

• Increased ground clearance for aggressive off-road use
• Extended-range upper ball joints provide smooth, quiet operation
• Fender clearance for 33-inch tall tires without rubbing
• No differential drop brackets required thanks to GM's 2019+ suspension geometry
• Maintains excellent highway ride quality while improving off-road damping capacity
• Prevents suspension bind at full droop for safe articulation
• Fully reversible to stock configuration if desired

Installation Notes:

This kit features straightforward installation with no complex modifications required. Rear lift blocks are optional—many owners choose to install the front lift only to achieve a level stance. The kit is specifically engineered for the unique factory lift suspension found on Trail Boss and AT4 models and should not be used on standard GM 1500 trucks.

The Fabtech K1152M delivers budget-friendly lift performance with quality components designed to maintain factory ride quality while enabling larger tire fitments and improved off-road capability.