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The QA1 GM Pro front coil-over system with double adjustable valving. Lightweight billet aluminum shocks paired with high travel 550lbs/in springs deliver fully adjustable ride height, independent compression and rebound damping, superior handling, and race-proven performance the ultimate front suspension upgrade for any classic GM muscle car or street/strip build seeking precise tuning and maximum control.
| Spec | Detail |
|---|---|
| Part Number | GD401-10550B |
| Brand | QA1 |
| Type | GM Pro Front Coil-Over System |
| Adjustability | Double Adjustable (Independent Compression and Rebound) |
| Spring Rate | 550 lbs/in |
| Spring Length | 10 in |
| Material | Billet Aluminum Shocks |
| Base | Flat |
| Country of Origin | United States |
| Warranty | QA1 Limited Lifetime |
| Year Range | Make | Model | Trim / Engine | Notes |
|---|---|---|---|---|
| Various | Chevrolet | Classic GM Muscle Cars | Front suspension | Verify application |
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