| Position | Front |
| Spring Rate | 600 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 1968-1972 GM A-Body vehicles 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
BUICK
GS 1970 - 1972
GS 350 1968 - 1969
GS 400 1968 - 1969
GS 455 1970 - 1972
Skylark 1968 - 1972
Special 1968 - 1969
Sportwagon 1968 - 1969
CHEVY
Chevelle 1968 - 1972
El Camino 1968 - 1972
Malibu 1964 - 1967
OLDSMOBILE
442 1968 - 1971
Cutlass 1968 - 1972
F85 1968 - 1972
Vista Cruiser 1968 - 1972
PONTIAC
GTO 1968 - 1972
Tempest 1968 - 1970
Charts
Guides & Documents
CA WARNING:
Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov
| KEY SPECS | |
|---|---|
| MFG. Part # | MG401-10600B |
| Brand | QA1 |
| Position | Front |
| Spring Rate | 600 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 |
| Recommended Front End Weight | 1,701-1,800 lbs. |
| GTIN Code | 806990154538 |
Be the first to ask a question.
1970-1972 Buick GS
1968-1969 Buick GS 350
1968-1969 Buick GS 400
1970-1972 Buick GS 455
1968-1972 Buick Skylark
1968-1969 Buick Special
1968-1969 Buick Sportwagon
1968-1972 Chevy Chevelle
1968-1972 Chevy El Camino
1964-1967 Chevy Malibu
1971-1972 GMC Sprint
1968-1971 Oldsmobile 442
1968-1972 Oldsmobile Cutlass
1968-1972 Oldsmobile F85
1968-1972 Oldsmobile Vista Cruiser
1968-1972 Pontiac GTO
1968-1972 Pontiac LeMans
1968-1970 Pontiac Tempest
