Adjustable ride height and valving for enhanced performance.
The QA1 Coil Over Shock Absorber is designed for those seeking a customizable suspension solution. This system features adjustable ride height and simultaneous compression and rebound valve adjustment, allowing users to tailor their driving experience. With an extended height of 12.8 inches and a compressed height of 9 inches, it accommodates various vehicle setups while maintaining optimal performance.
Constructed with a silver aluminum shock body and powder-coated springs, this coil over system is not only durable but also visually appealing. The 10-inch spring height and a spring rate of 550 pounds per inch provide a balance between comfort and handling, making it suitable for street performance, drag racing, and autocross applications. The QA1 system is 100 percent dyno tested and serialized, ensuring reliability and quality.
Installation is straightforward with the included mounting hardware, making it a practical choice for enthusiasts looking to enhance their vehicle's suspension. The rebuildable and revalveable design further extends the lifespan of the product, allowing for adjustments as driving styles or conditions change.
Features
- Ride Height Adjustable
- 100 Percent Dyno Tested And Serialized
- Rebuildable And Revalveable
- Used In Drag Racing, Street Performance, Autocross And Road Racing Applications
- Easy, Bolt-In Installation
Specifications
- Manufacturer: QA1
- Manufacturer Part Number: GS401-10550B
- Adjustable: Yes
- Upper Mounting Type: Stud
- Lower Mounting type: Cross Pin
- Extended Height (IN): 12.8 Inch
- Compressed Height (IN): 9 Inch
- Quantity: Set Of 2
- Valving Type: Simultaneous Compression And Rebound Valving
- Shock Body Color: Silver
- Shock Body Material: Aluminum
- Spring Height (IN): 10 Inch
- Spring Rate: 550 Pounds Per Inch
- Spring Style: Single Flat End
- Spring Finish: Powder Coated
- Spring Color: Silver
- Spring Material: Silicon Steel
- Includes Mounting Hardware: Yes
Compatibility / Fit
- 1968-1972 Buick Skylark
- 1968-1972 Chevrolet Chevelle
- 1968-1972 Chevrolet El Camino
- 1970-1972 Chevrolet Monte Carlo
- 1968-1971 Oldsmobile 442
- 1968-1972 Oldsmobile Cutlass
- 1968-1972 Oldsmobile F85
- 1968-1972 Pontiac GTO
- 1968-1972 Pontiac LeMans
- 1968-1970 Pontiac Tempest
Technical Documents
Shipping & Returns
- This product ships within the continental USA only.
- This product typically ships within 1 to 3 business days.
- Returns are accepted within 30 days for items in like-new condition. For complete details, please see our return policy.
Skip to content

