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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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QA1
QA1 GM Pro Front Coil-Over System, Double Adjustable, 10in 550lb/in, Aluminum, Select GM 1968-1972 (GD401-10550B)
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 1968-1972 Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models, including Chevelle, GTO, Skylark, Cutlass, and El Camino.
The QA1 GM Pro Front Coil-Over System (GD401-10550B) offers independent control over compression and rebound valving, allowing you to fine-tune your suspension for street performance, drag racing, or road course applications. These double-adjustable billet aluminum shocks feature a fully threaded body for up to 2 inches of ride height adjustment to achieve the perfect stance and corner balance.
Paired with 10-inch, 550lb/in high-travel springs, this system utilizes a specialized wire diameter and fewer coils to increase suspension travel while reducing unsprung weight. The bolt-in design is compatible with factory or QA1 tubular control arms for a straightforward installation that improves response and handling.
- Double adjustable for independent compression and rebound tuning
- Lightweight billet aluminum shocks with 100% dyno testing and serialization
- 10-inch high-travel springs with 550lb/in spring rate
- Up to 2 inches of ride height adjustment
- Serviceable and rebuildable by QA1 authorized centers
- Includes limited lifetime warranty
- Proudly made in the USA
- Manufacturer Part Number: GD401-10550B
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1970,1972 | Buick | Skylark | 350 |
| 1968-1972 | Buick | Skylark | Base |
| 1968-1972 | Buick | Skylark | Custom |
| 1968-1969 | Buick | Special | Base |
| 1968 | Chevrolet | Chevelle | 300 |
| 1968-1969 | Chevrolet | Chevelle | 300 Deluxe |
| 1970-1972 | Chevrolet | Chevelle | Base |
| 1968-1972 | Chevrolet | Chevelle | Concours |
| 1969-1972 | Chevrolet | Chevelle | Concours Estate |
| 1969-1972 | Chevrolet | Chevelle | Greenbrier |
| 1968-1972 | Chevrolet | Chevelle | Malibu |
| 1968-1972 | Chevrolet | Chevelle | Nomad |
| 1968 | Chevrolet | Chevelle | Nomad Custom |
| 1971-1972 | Chevrolet | Chevelle | SS |
| 1968-1970 | Chevrolet | Chevelle | SS 396 |
| 1968-1972 | Chevrolet | El Camino | Base |
| 1968-1972 | Chevrolet | El Camino | Custom |
| 1968-1972 | Chevrolet | El Camino | SS |
| 1971-1972 | GMC | Sprint | Base |
| 1972 | GMC | Sprint | Custom |
| 1968-1971 | Oldsmobile | 442 | Base |
| 1968-1972 | Oldsmobile | Cutlass | Base |
| 1972 | Oldsmobile | Cutlass | Cruiser |
| 1968,1971-1972 | Oldsmobile | Cutlass | S |
| 1968-1972 | Oldsmobile | Vista Cruiser | Base |
| 1968-1972 | Pontiac | GTO | Base |
| 1970-1971 | Pontiac | GTO | The Judge |
| 1968-1972 | Pontiac | LeMans | Base |
| 1972 | Pontiac | LeMans | Luxury |
| 1969-1970 | Pontiac | LeMans | Safari |
| 1970-1972 | Pontiac | LeMans | Sport |
| 1971 | Pontiac | LeMans | T37 |
| 1968-1970 | Pontiac | Tempest | Base |
| 1968-1969 | Pontiac | Tempest | Custom |
| 1970 | Pontiac | Tempest | GT |
| 1968-1969 | Pontiac | Tempest | Safari |
Choose your Location
-
Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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QA1 GM Pro Front Coil-Over System, Double Adjustable, 10in 550lb/in, Aluminum, Select GM 1968-1972 (GD401-10550B)
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
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Fits select 1968-1972 Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models, including Chevelle, GTO, Skylark, Cutlass, and El Camino.
The QA1 GM Pro Front Coil-Over System (GD401-10550B) offers independent control over compression and rebound valving, allowing you to fine-tune your suspension for street performance, drag racing, or road course applications. These double-adjustable billet aluminum shocks feature a fully threaded body for up to 2 inches of ride height adjustment to achieve the perfect stance and corner balance.
Paired with 10-inch, 550lb/in high-travel springs, this system utilizes a specialized wire diameter and fewer coils to increase suspension travel while reducing unsprung weight. The bolt-in design is compatible with factory or QA1 tubular control arms for a straightforward installation that improves response and handling.
- Double adjustable for independent compression and rebound tuning
- Lightweight billet aluminum shocks with 100% dyno testing and serialization
- 10-inch high-travel springs with 550lb/in spring rate
- Up to 2 inches of ride height adjustment
- Serviceable and rebuildable by QA1 authorized centers
- Includes limited lifetime warranty
- Proudly made in the USA
- Manufacturer Part Number: GD401-10550B
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1970,1972 | Buick | Skylark | 350 |
| 1968-1972 | Buick | Skylark | Base |
| 1968-1972 | Buick | Skylark | Custom |
| 1968-1969 | Buick | Special | Base |
| 1968 | Chevrolet | Chevelle | 300 |
| 1968-1969 | Chevrolet | Chevelle | 300 Deluxe |
| 1970-1972 | Chevrolet | Chevelle | Base |
| 1968-1972 | Chevrolet | Chevelle | Concours |
| 1969-1972 | Chevrolet | Chevelle | Concours Estate |
| 1969-1972 | Chevrolet | Chevelle | Greenbrier |
| 1968-1972 | Chevrolet | Chevelle | Malibu |
| 1968-1972 | Chevrolet | Chevelle | Nomad |
| 1968 | Chevrolet | Chevelle | Nomad Custom |
| 1971-1972 | Chevrolet | Chevelle | SS |
| 1968-1970 | Chevrolet | Chevelle | SS 396 |
| 1968-1972 | Chevrolet | El Camino | Base |
| 1968-1972 | Chevrolet | El Camino | Custom |
| 1968-1972 | Chevrolet | El Camino | SS |
| 1971-1972 | GMC | Sprint | Base |
| 1972 | GMC | Sprint | Custom |
| 1968-1971 | Oldsmobile | 442 | Base |
| 1968-1972 | Oldsmobile | Cutlass | Base |
| 1972 | Oldsmobile | Cutlass | Cruiser |
| 1968,1971-1972 | Oldsmobile | Cutlass | S |
| 1968-1972 | Oldsmobile | Vista Cruiser | Base |
| 1968-1972 | Pontiac | GTO | Base |
| 1970-1971 | Pontiac | GTO | The Judge |
| 1968-1972 | Pontiac | LeMans | Base |
| 1972 | Pontiac | LeMans | Luxury |
| 1969-1970 | Pontiac | LeMans | Safari |
| 1970-1972 | Pontiac | LeMans | Sport |
| 1971 | Pontiac | LeMans | T37 |
| 1968-1970 | Pontiac | Tempest | Base |
| 1968-1969 | Pontiac | Tempest | Custom |
| 1970 | Pontiac | Tempest | GT |
| 1968-1969 | Pontiac | Tempest | Safari |
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