Product Description:
QA1 4-6” Lowering Kit – 4WD Silverado / Sierra 1500
Complete front and rear suspension system designed to lower your 4WD truck while improving ride quality, handling, and adjustability.
✔ 1–3” Front Drop (No Spindles)
✔ Double Adjustable Shocks
✔ Designed for 4WD Trucks
✔ Bolt-In Installation
⚠️ This kit does NOT include drop spindles. Front drop is limited compared to spindle-equipped kits.
Want a lower stance with better ride quality? Check out our spindle-equipped kits (LK12 / LK22).
Performance & Adjustability
QA1 Pro Coil coilovers paired with double adjustable shocks allow independent tuning of compression and rebound. Dial in ride quality for daily driving or tighten it up for performance handling.
Ride Height Range
Front: 1–3” drop
Rear: 4–6” drop with ½” incremental adjustment
Heavy-Duty Design
Engineered specifically for truck use with upgraded shocks, polyurethane bushings, and a 1” chromoly T-bar to handle weight and daily driving demands.
Rear Drop System
Includes heavy-duty shackles and hangers made from powder-coated steel for long-term durability and consistent ride quality.
Installation
Fully bolt-in system designed for straightforward installation with no major modifications required.
Warranty
Backed by QA1’s lifetime warranty (registration required).
Fitment Notes
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Compatible with OEM or aftermarket drop spindles
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Axle U-bolts not included
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Does not fit 1500HD model trucks or 2007 Silverado/Sierra 1500 Classic
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Offset upper control arm bushings (AcDelco PN 45K0201) may be required on vehicles lowered more the 2.5” to align within the factory specifications.
over 2.5”
| Kit Type | Lowering Kit |
| Drivetrain | 4WD |
| Shock Valving | Double Adjustable |
| Includes Drop Spindles | No |
| Emission Code | 4 |
| Prop 65 Warning | Yes |
