SKU: GD401-10400C | UPC: 806990062574
QA1 Pro Front Coil-Over System – Double Adjustable – 10″ x 400 lb/in – Flat Large – Aluminum for GM Vehicles
The QA1 GD401-10400C Pro Front Coil-Over System is the ultimate bolt-in suspension upgrade for performance GM vehicles. This double-adjustable kit features lightweight aluminum shocks with independent 18-position compression and 18-position rebound tuning (324 possible combinations) and 10″ high-travel 400 lb/in springs. It delivers fully adjustable ride height, superior handling, and the ability to fine-tune for street, autocross, drag racing, or road course use. The “Flat Large” configuration is optimized for popular GM muscle car and truck applications requiring a larger spring pocket.
Key Features
- Double Adjustable Shocks: Independent compression and rebound control with 18 clicks each
- 400 lb/in High-Travel Springs: Performance rate for excellent support and weight transfer
- 10″ Spring Length: Optimized for lowered applications with maximum travel
- Fully Threaded Aluminum Body: Easy, precise ride height adjustment
- Bolt-In Installation: Direct replacement for factory coil springs and shocks
- Lightweight Design: Reduces unsprung weight for improved handling and response
Specifications
| Specification | Detail |
|---|---|
| Part Number | GD401-10400C |
| Position | Front |
| Shock Type | Double Adjustable Aluminum Coil-Over |
| Spring Rate | 400 lb/in |
| Spring Length | 10″ |
| Spring Pocket | Flat Large |
| Compatibility | Various GM Performance Vehicles (Chevelle, Camaro, Nova, C10, etc.) |
| Installation | Bolt-On Direct Replacement |
| Country of Origin | United States |
| Warranty | Limited Lifetime (QA1) |
| Shipping Weight | Approx. 35-45 lbs |
What’s Included
- Pair of QA1 Double Adjustable Front Pro Coil Shocks
- Pair of 10″ x 400 lb/in High-Travel Springs
- All Necessary Mounting Brackets and Hardware
- Detailed Installation Instructions
Product Notes
- Designed for GM vehicles requiring the “Flat Large” spring pocket configuration
- 400 lb/in spring rate is ideal for performance and aggressive driving applications
- Professional installation and front alignment recommended
Installation Notes
- Estimated time: 4-6 hours, moderate difficulty
- Bolt-on system using factory mounting points
- Full front alignment required after installation
This Part Fits
| Application | Notes |
|---|---|
| Various GM Muscle Cars & Trucks | Chevelle, Camaro, Nova, C10, and other GM vehicles requiring Flat Large spring pocket |
Why Choose QA1 Pro Front Coil-Over System?
- Full double-adjustable control for perfect ride height and handling balance
- Lightweight aluminum shocks with high-travel springs for maximum performance
- Premium QA1 quality made in the USA with lifetime warranty confidence
Frequently Asked Questions
- Q: What vehicles does this fit?
A: Designed for various GM performance applications requiring the Flat Large spring pocket (Chevelle, Camaro, Nova, C10, etc.). - Q: What spring rate is included?
A: 400 lb/in excellent performance rate for aggressive driving. - Q: Is an alignment required?
A: Yes, a full front alignment is required after installation. - Q: What is the warranty?
A: Covered by QA1’s limited lifetime warranty.
Shipping & Handling
- Method: UPS / FedEx Ground (Oversize)
- Availability: In stock ships same or next business day
- Packaging: Secure protective packaging
- Weight: Approx. 35-45 lbs
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