ProComp 19-25 GM 1/2 TON 4WD 6″ COMPLETE KIT

The ProComp GM 1500 4WD 6 Inch Complete Lift Kit 2019-2025 Chevy Silverado and GMC Sierra 1500 4WD turns a properly lifted truck into a true 6-inch stance, clearance for larger and more aggressive tires, and a complete matched suspension system that preserves factory steering feel and driveline angles without leaving geometry or supporting hardware as afterthoughts. 

From high-strength extended steering knuckles and fabricated steel strut spacers with pre-pressed studs up front to heavy-duty one-piece crossmembers with integrated differential and sway bar drops, vehicle-specific rear lift blocks, and tuned rear monotube shocks, this system is engineered as a complete package for half-ton GM truck owners who want a professional-grade 6-inch lift done right. At IMM Hawaii Parts, we carry this kit for Silverado and Sierra 1500 owners who want a properly matched complete system that delivers confident on-road manners and weekend trail capability in a single bolt-on package.

ProComp GM 1500 4WD 6 Inch Complete Lift Kit 2019-2025 Extended Steering Knuckles for Geometry Retention

The high-strength extended steering knuckles are one of the most critical components in a 6-inch lift system for the GM 1500 platform. At 6 inches of lift, the front suspension geometry changes significantly, and without proper knuckle correction, the ball joints and CV joints are pushed into steep operating angles that accelerate wear and compromise the steering feel and front-end precision that Silverado and Sierra owners expect from a daily driver and tow vehicle. 

The extended knuckles in this Pro Comp system keep the front-end geometry within a safe and properly functioning range at the 6-inch lift height, maintaining the factory steering feel and preventing the premature component wear that unaddressed geometry changes create. Customers at IMM Hawaii Parts who have experienced a poorly engineered 6-inch lift kit on their GM 1500 know exactly how important this geometry correction is to the finished result.

Fabricated Steel Strut Spacers With Pre-Pressed Studs

The fabricated steel front strut spacers in this kit are built with pre-pressed studs for faster and more precise installation compared to spacers that require stud installation as a separate step. The pre-pressed design ensures the studs are correctly positioned and torqued before the spacer ever reaches the truck, eliminating a step from the installation process and producing a more consistent and reliable finished result. Fabricated steel construction provides the strength needed to hold the 6-inch lift height consistently on the GM 1500 through regular towing, hauling, and off-road use without the flex or deformation that lesser spacer materials would develop over time.

Heavy Duty One-Piece Crossmembers With Integrated Drops

The one-piece front and rear crossmembers in this system integrate the differential drop and sway bar drop directly into the crossmember structure rather than using separate bolt-on brackets. This integrated design is stronger, cleaner, and more precise than systems that rely on individual drop brackets, and it ensures the differential and sway bar are correctly repositioned as part of a unified assembly after the 6-inch lift is installed. Proper differential positioning maintains correct CV and driveline angles, and correct sway bar geometry preserves the roll stability and handling feel that make the Silverado and Sierra 1500 a confident truck on the highway during towing and on trails during off-road use.

Rear Lift Blocks With HD U-Bolts and Tuned Rear Monotube Shocks

The rear of this system delivers matched rear lift through vehicle-specific rear lift blocks secured with heavy-duty U-bolts for a properly supported and correctly positioned rear axle at the 6-inch lift height. Tuned rear monotube shocks complete the rear setup with controlled and composed damping for on-road daily driving and weekend trail use. The monotube design provides consistent rear damping performance through the full range of rear suspension travel without the aeration and performance degradation that twin-tube shocks develop during sustained hard use under load.

All Supporting Hardware for a Complete and Properly Finished Install

Brake line solutions and bump stop hardware are included to ensure the lifted GM 1500 suspension operates correctly through its full range of travel. Bump stop extensions prevent premature contact at the top of the suspension stroke, and brake line hardware ensures proper routing and clearance at the new lifted ride height. All required installation hardware is included in the kit, and professional alignment is recommended after the lift is complete to confirm correct caster, camber, and toe settings with the new knuckle geometry and lift height in place.

Product Details

Who Gets the Most From This System

The ProComp GM 1500 4WD 6 Inch Complete Lift Kit 2019-2025 Silverado and Sierra 1500 4WD owners who want a complete 6-inch lift system with proper steering knuckle geometry correction, integrated crossmember drops, and tuned rear monotube shocks in a single matched package. Shop this kit and complete GM 1500 wheel and tire packages at IMM Hawaii Parts, where our team can help you build the perfect 6-inch lifted Silverado or Sierra 1500 setup for towing, daily driving, and trail use.

Whether you're planning an off-road build or replacing worn components, contact IMM Hawaii Parts for expert advice and quality products.