SKU: GD507-10500C | UPC: 806990062574
QA1 Pro Front Coil-Over System – Double Adjustable – 10″ x 500 lb/in – Flat Large – Aluminum for 1971-1996 GM Full-Size Vehicles
The QA1 GD507-10500C Pro Front Coil-Over System is the ultimate bolt-in suspension upgrade for 1971-1996 Impalas and full-size GM vehicles (including Chevy, Buick, Oldsmobile, Pontiac) as well as Ford full-size cars and Galaxies. 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 500 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 full-size GM applications requiring a larger spring pocket.
Key Features
- Double Adjustable Shocks: Independent compression and rebound control with 18 clicks each (324 combinations)
- 500 lb/in High-Travel Springs: Stiffer 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 for the perfect stance
- 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 | GD507-10500C |
| Position | Front |
| Shock Type | Double Adjustable Aluminum Coil-Over |
| Spring Rate | 500 lb/in |
| Spring Length | 10″ |
| Spring Pocket | Flat Large |
| Compatibility | 1971-1996 GM Full-Size Vehicles (Impala, Caprice, etc.) and Ford Full-Size / Galaxies |
| 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 500 lb/in High-Travel Springs
- All Necessary Mounting Brackets and Hardware
- Detailed Installation Instructions
Product Notes
- Designed for 1971-1996 Impalas and full-size GM vehicles (Chevy, Buick, Oldsmobile, Pontiac) plus Ford full-size and Galaxies
- 500 lb/in spring rate is stiffer 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
| Year | Make | Model | Notes |
|---|---|---|---|
| 1971 to 1996 | Chevrolet | Impala / Caprice / Full-Size | All Models requiring Flat Large spring pocket |
| 1971 to 1996 | Buick | Full-Size Models | All Models requiring Flat Large spring pocket |
| 1971 to 1996 | Oldsmobile | Full-Size Models | All Models requiring Flat Large spring pocket |
| 1971 to 1996 | Pontiac | Full-Size Models | All Models requiring Flat Large spring pocket |
| 1971 to 1996 | Ford | Full-Size / Galaxie | Models 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: Will this kit fit my 1978 Chevrolet Impala?
A: Yes, GD507-10500C is designed for 1971-1996 GM full-size vehicles requiring the Flat Large spring pocket. - Q: What spring rate is included?
A: 500 lb/in stiffer rate ideal for performance and 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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