| Position | Front |
| Spring Rate | 400 lbs. |
| Shock Adjustability | Double Adjustable |
| Shock Type | Twin Tube |
| Shock Body Material | Aluminum |
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855.313.9176Quick and Easy Returns
Return PolicyThe QA1 GM Pro Coil System for 1967-1969 F-Bodies and 1968-1974 X-Bodies is a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling.
Specially designed for QA1's Pro Coil Systems, the American-made lightweight high travel springs* have fewer coils and a smaller wire diameter, resulting in increased travel due to the larger distance between the coils. They reduce unsprung weight and react faster, optimizing suspension performance. Multiple spring rate options are also available and have been successfully tested in various applications, from casual street driving to hard core race applications.
Adjustable Pro Coil System Features:
Additional MOD™ Series Features:
SPRING RATE CHART
The chart below is a general guideline for selecting spring rates for QA1's GM Front Pro Coil Shock Systems. Spring rates may vary depending on applications, usage, and personal preference.
| FRONT AXLE WEIGHT IN LBS. | ||||||||
| 1500-1600 | 1601-1700 | 1701-1800 | 1801-1900 | 1901-2000 | 2001-2100 | 2101-2200 | 2201-2300 | 2301-2400 |
|---|---|---|---|---|---|---|---|---|
| 250 | 300 | 350 | 400 | 450 | 500 | 550 | 600 | 650 |
AVERAGE VEHICLE WEIGHT
Not sure what your vehicle weighs? See our detailedwith Vehicle Weights for general guidelines on determining the approximate weight of popular vehicles.
Application
Fits: 1967-1969 Chevy Camaro, Pontiac Firebird; 1968-1974 Chevy II, Nova; 1973-1974 Buick Skylark, Buick Apollo, Oldsmobile Omega; 1971-1974 Pontiac Ventura
| Part Numbers | |||||||||
| Vehicle Weight | MOD™ Series Adjustable | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1500-1600 lbs. | MG401-11250A | ||||||||
| 1601-1700 lbs. | MG401-11300A | ||||||||
| 1701-1800 lbs. | MG401-10350A | ||||||||
| 1801-1900 lbs. | MG401-10400A | ||||||||
| 1901-2000 lbs. | MG401-10450A | ||||||||
| 2001-2100 lbs. | MG401-10500A | ||||||||
| 2101-2200 lbs. | MG401-10550A | ||||||||
| 2201-2300 lbs. | MG401-10600A | ||||||||
| 2301-2400 lbs. | MG401-10650A | ||||||||
Charts
Guides & Documents
CA WARNING:
Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov
| KEY SPECS | |
|---|---|
| MFG. Part # | MG401-10400A |
| Brand | QA1 |
| Position | Front |
| Spring Rate | 400 lbs. |
| Shock Adjustability | Double Adjustable |
| Shock Type | Twin Tube |
| Shock Body Material | Aluminum |
| Upper Shock Mount | Stud |
| Lower Shock Mount | Bushed Eyelet |
| Height Adjustable | Yes |
| Finish | Anodized |
| GENERAL | |
| Shock Body Size | Large Body |
| Shock Body Type | Threaded |
| Compressed Length Range | 8.00" to 8.99" |
| Compressed Length | 8.63" |
| Extended Length Range | 11.00" to 11.99" |
| Extended Length | 11.63" |
| Number of Valving Selections | 324 |
| Coilover Kit Included | Yes |
| Coilover Springs Included | Yes |
| Bushing Material | Rubber |
| Body Diameter | 3" |
| Sold in Quantity | Kit |
| Adjustable | Yes |
| Hardware Included | No |
| Crossmember Included | No |
| Welding Required | No |
| Gas Charged | No |
| Color | Black |
| Mounting Bracket Included | No |
| Suspension Height Adjustment | 0.0-2.0 Inch Lowered |
| Spring Finish | Powder Coated |
| Spring Color | Silver |
| GTIN Code | 806990154408 |
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1973-1974 Buick Apollo
1975 Buick Skylark
1967-1969 Chevy Camaro
1962-1968 Chevy Chevy II
1969-1974 Chevy Nova
1973-1974 Oldsmobile Omega
1962-1971 Pontiac Acadian
1967-1969 Pontiac Firebird
1971-1974 Pontiac Ventura
