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#721LK11GMT05
$2,673.95
/kit
Factory Shipped
Quantity
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| Hardware Included | Yes |
| Front Coil Springs Included | Yes |
| Rear Coil Springs Included | No |
| Rear Leaf Springs Included | No |
| Front Shock Struts Included | Yes |
Truck Shipment
Truck shipments must be pre-paid with a credit card, certified check or money order
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Return PolicyThis 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.
FEATURES AND BENEFITS:
FITMENT NOTES:
Guides & Documents
CA WARNING:
Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov
| KEY SPECS | |
|---|---|
| MFG. Part # | LK11-GMT05 |
| Brand | QA1 |
| Hardware Included | Yes |
| Front Coil Springs Included | Yes |
| Rear Coil Springs Included | No |
| Rear Leaf Springs Included | No |
| Front Shock Struts Included | Yes |
| Front Shock Type | Single adjustable coil-over |
| Rear Shock Struts Included | Yes |
| Rear Shock Type | Single Adjustable |
| Front Sway Bar Included | No |
| Rear Sway Bar Included | No |
| Tie Rod Sleeves Included | No |
| End Link Bushings Included | No |
| Rear Leaf Spring Bushings Included | No |
| Sway Bar Bushings Included | No |
| Upper Trailing Arms Included | No |
| Lower Trailing Arms Included | No |
| Trailing Arm Mount Braces Included | No |
| Panhard Bar Included | No |
| Torque Arm Included | No |
| Upper Control Arms Included | No |
| Lower Control Arms Included | No |
| Subframe Connectors Included | No |
| Spindles Included | Yes |
| Inner Tie Rod Ends Included | No |
| Outer Tie Rod Ends Included | No |
| Drivetrain | 2WD/4WD |
| Front Suspension Height | 2.0-4.0 Inch Lowered |
| Rear Suspension Height | 5.0 Inch Lowered |
| Suspension Height Adjustment | Lowered |
| GENERAL | |
| Sold in Quantity | Each |
| Notes | 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 |
| Shock Type | Single-adjustable |
| Spindle Type | Drop Spindle |
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2019-2026 Chevy Silverado 1500
2019-2026 GMC Sierra 1500
