SKU: GD510-10700 | UPC: 806990233561
QA1 99-06 Chevrolet Silverado 1500 2WD Front Coil-Over Kit – Double Adjustable
QA1 double adjustable coil-over kit upgrades front suspension on 1999-2006 Chevrolet Silverado 1500 2WD and GMC Sierra 1500 2WD trucks with factory coil springs. Tubular upper and lower control arms combine with coil-overs for 1 to 3 inch ride height drops and damping tuned on vehicle. Bolt-on design improves handling response, ride control, and lowered stance on NBS models.
Key Features
- Ride Height Adjustment: 1 to 3 inches drop stock. Pair with QA1 2-inch drop spindles (9056-120) for 3 to 5 inches total drop matching rear suspension.
- Double Adjustable Damping: 18 clicks compression and 18 clicks rebound for on-truck tuning of ride and cornering performance.
- Tubular Control Arms: QA1 uppers and lowers enhance geometry, increase strength, and extend suspension travel beyond OEM parts.
- Bolt-On Design: Uses factory mounts and basic tools for straightforward install without cutting or welding.
- Made in USA: Built in Lakeville, Minnesota using premium materials for street and track longevity.
Product Notes
- Requires QA1 lower control arms. Not compatible with OEM or other aftermarket lower control arms.
- Designed for vehicles with factory coil spring front suspension only. Not for torsion bar models.
- Kit weight 55.3 lbs. Ships in one oversized box measuring 24 x 16 x 12 inches.
Installation Notes
- Professional installation recommended.
- Bolts in place with provided hardware. Reuse or replace factory bushings as needed.
- Compatible with QA1 tubular upper control arms for complete setup.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999-2005 | Chevrolet | Silverado 1500 | Base |
| 2004-2006 | Chevrolet | Silverado 1500 | Hybrid |
| 1999-2006 | Chevrolet | Silverado 1500 | LS |
| 1999-2006 | Chevrolet | Silverado 1500 | LT |
| 2003-2006 | Chevrolet | Silverado 1500 | SS |
| 2002-2006 | Chevrolet | Silverado 1500 | WT |
| 2004-2005 | Chevrolet | Silverado 1500 | Z71 Off-Road |
| 2002-2005 | GMC | Sierra 1500 | Base |
| 2001 | GMC | Sierra 1500 | C3 |
| 1999-2006 | GMC | Sierra 1500 | SLE |
| 1999-2006 | GMC | Sierra 1500 | SLT |
| 2002-2006 | GMC | Sierra 1500 | WT |
| 2002-2006 | GMC | Sierra 1500 | Denali |
| 2002 | GMC | Sierra 1500 | HT |
| 2005-2006 | GMC | Sierra 1500 | Hybrid |
| 1999-2003 | GMC | Sierra 1500 | SL |
| 2006 | GMC | Sierra 1500 | SL |
Why Choose QA1?
- Over 40 years of motorsports suspension expertise applied to street trucks.
- Components tested for real-world durability and performance gains.
- Engineered for precise fit and adjustable tuning on NBS platforms.
Frequently Asked Questions
- Q: Will this kit fit my truck with torsion bar suspension?
A: No, this kit fits only 2WD models with factory coil spring front suspension. - Q: What materials are used in the control arms?
A: High-strength steel tubular construction with greasable ball joints and bushings for longevity. - Q: What is the warranty on this kit?
A: QA1 offers a limited lifetime warranty on control arms and one-year on coil-overs against defects.
Shipping &. Handling
- Method: UPS Ground or freight for oversized package
- Availability: In stock – ships same or next business day
- Packaging: Securely boxed at 24 x 16 x 12 inches
- Weight: 55.3 lbs
