This QA1 lowering kit is designed to drop your 2019–2026 Silverado 1500 or Sierra 1500 while improving ride quality, control, and stance. Built around QA1 single adjustable Pro-Coil front coilovers and matched rear shocks, it allows you to fine-tune ride feel with a simple turn of a knob. If you want a proven 4/5 drop that balances comfort, control, and ease of installation, this kit delivers. MODERN HANDLING AND ADJUSTABILITY Lowering a modern truck should enhance how it drives, not make it harsher or less predictable. This kit uses QA1 single adjustable shocks up front and in the rear to give you real control over ride firmness. With one adjustment, you can dial the suspension to match daily driving, highway cruising, or a more planted street feel. The result is a lowered Silverado that still drives like a truck you want to spend time behind the wheel of. ENGINEERED FOR STRENGTH AND STREET USE QA1 engineered this system specifically for the weight, suspension geometry, and real-world demands of late-model half-ton trucks. The Pro-Coil front suspension uses matched springs, shock valving, thrust bearings, and mounting hardware to deliver smooth adjustment and consistent performance. By pairing properly matched front and rear components, this kit avoids the compromises of pieced-together lowering solutions and keeps your suspension working as a complete system. BOLT-IN CONVENIENCE This lowering kit is designed as a bolt-in solution for 2019–2026 Silverado 1500 and Sierra 1500 trucks in both 2WD and 4WD configurations. No cutting or welding is required, making it a straightforward upgrade for builders who want results without unnecessary complexity. Included drop spindles help achieve the desired drop while maintaining suspension geometry, and the rear mounting hardware and shock package are designed to support a clean 3–5 inch drop.
FITMENT NOTES: Vehicle: 2019–2026 Silverado 1500 and Sierra 1500, Drivetrain: 2WD and 4WD, Front Drop range: 2–4 inches, Rear Drop range: 3–5 inches, Shock type: Single adjustable front and rear, Traction bars kits only work with QA1 rear lowering kits, Not compatible with MagnaRide suspension systems, Not compatible with air suspension, Does not fit trucks with mono leaf springs, Spindles require minimum 18” diameter wheels, Applications using rims smaller than 20" in diameter will require lower ball joint modification
QA1 2019+ Chevrolet Silverado / GMC Sierra 1500 Single Adjustable 4/5in Lowering Kit w/ Spindles
QA1 LK11-GMT05 4/5 Lowering Kit, 19-26 Silverado/Sierra 1500, W/Spindles, Single Adjustable
2–4 inch front and 3-5 inch rear drop range for an aggressive, street-focused stance
QA1 LK11-GMT05 4/5 Lowering Kit 19-26 Silv/Sierra 1500, W/Spindles, Sngl Adjust
Designed specifically for 2019–2026 Silverado 1500 and Sierra 1500
Single adjustable Pro-Coil front suspension for easy ride tuning
Optional traction bar compatibility for higher horsepower builds
Matching single adjustable rear shocks for balanced performance
Drop spindles included to maintain proper geometry
Compatible with both 2WD and 4WD applications
Fully bolt-in design for easier installation
Coilover Adjustable Spring Lowering Kit
QA1 19-26 Silverado Lowering Kit
Slvrado Lowering Kit
