QA1 4-6” Lowering Kit – Double Adjustable w/ Spindles | 14-18 Silverado/Sierra 1500 2WD

QA1 4-6” Lowering Kit w/ Spindles – Double Adjustable | 2014–2018 Silverado / Sierra 1500 2WD

Premium front and rear suspension system engineered for maximum performance, ride quality, and adjustability. Designed for 2WD trucks with stamped steel or aluminum control arms, this kit delivers an aggressive stance with track-level tuning capability.

✔ This is the ultimate performance upgrade – independent compression & rebound tuning for total suspension control.

✔ True double adjustability allows precise dialing of ride comfort, cornering performance, and weight transfer.

Performance & Ride Quality

QA1 Pro Coil double adjustable system delivers a massive upgrade in handling and ride quality. Fine-tune compression and rebound independently to achieve the perfect balance between street comfort and aggressive performance driving.

Ride Height Range

Front: 3–5” drop (with included spindles)
Rear: 4–6” drop with ½” incremental adjustment

Heavy-Duty Design

Built to handle real truck use with upgraded shocks, polyurethane bushings, and a 1” chromoly T-bar for strength, durability, and long-term reliability.

Rear Drop System

Includes heavy-duty shackles and hangers constructed from powder-coated steel for maximum durability and consistent ride quality.

Installation

Fully bolt-in system with no cutting or fabrication required for a clean, straightforward install.

Warranty

Backed by QA1’s lifetime warranty (registration required).

Fitment Notes

• Fits 2014–2018 Silverado / Sierra 1500 2WD
• Designed for trucks with stamped steel or aluminum control arms
• Includes front drop spindles
• Requires minimum 18” wheels for proper clearance
• Axle U-bolts not included
• Does NOT fit 1500HD models
• Offset upper control arm bushings (ACDelco 45K0201) may be required for alignment when lowered over 2.5”

Specifications