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QA1 Shock GM C-O S-Adj 9 12.8 Stud/T-Bar GS401

QA1 Shock GM C-O S-Adj 9 12.8 Stud/T-Bar GS401
QA1 Shock GM C-O S-Adj 9 12.8 Stud/T-Bar GS401QA1 Shock GM C-O S-Adj 9 12.8 Stud/T-Bar GS401
$435.99 ea
NEWARRIVING SOONEstimated Ship Date 08/29/2025 (If Ordered Today)
Model: 5052856
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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QA1 Single Adjustable Pro-Coil shocks are an excellent choice to gain a better stance, ride quality and performance. These are a great solution for adjustable ride height, and the single-adjustable valving provides ample range of tunability for comfort and performance.

QA1 coil over benefits: easily adjust your stance, performance, and comfort; USA-made quality

DIAL IN THE PERFECT STANCE 

Achieving the perfect, level stance is critical for the overall look and appearance of your car. Pro-Coil shocks offer 2 inches of ride height adjustability, allowing you to dial in the perfect stance. Adjustments within this range can be made with a simple turn of the spring seat nut. For an additional drop beyond 2 inches, consider adding drop spindles to your car. 

TUNE YOUR RIDE COMFORT & PERFORMANCE

QA1 single adjustable coilovers deliver exceptional ride quality and performance for your vehicle. With the simple turn of a dial, you can effortlessly switch between a comfortable cruise and a more aggressive feel, making them ideal for daily driving or twisty backroads. Accessing the 18-position knob is easy, and by turning the steering wheel to full lock, you can reach in and make your tuning adjustments at the base of the shock.  

EASY, BOLT-IN INSTALLATION

Pro-Coil shocks seamlessly bolt-in with both Original Equipment (OE) stamped steel control arms or QA1 tubular control arms. This gives you the flexibility to use your existing setup or upgrade your control arms for additional performance gains. 

Chock out the install video

MADE IN THE USA

QA1 shocks are proudly made in Lakeville, Minnesota. See a complete video on the manufacturing process. 

FEATURES AND BENEFITS

  • Up to 2” of ride height adjustment allows you to dial in the perfect stance. 
  • Achieve the ultimate balance of ride quality and performance with simultaneous adjustment of rebound and compression valving. 
  • Easy bolt-in installation that works with your factory or upgraded QA1 tubular control arms. 
  • Limited Lifetime Warranty for peace of mind. 
  • Proudly made in the USA

BEST-IN-CLASS WARRANTY

QA1 Single Adjustable shocks are eligable for a Limited Lifetime Warranty. For peace of mind, simply register your shocks at QA1.net/Warranty to ensure coverage for as long as you own your vehicle. 

FITMENT NOTES

Springs are Not Included - Shock Only

Must be used with QA1 tapered coil springs  

Spanner wrench: P/N T114W or T115W (required) Thrust Bearing Kits (optional): P/N 7888-109 

About Qa1 Precision Products

From bolt-on products that get you behind the wheel faster, to experienced technicians available to help increase your 60’ times or handle curves with confidence, everything we do is designed to get you out on the road.

Whether your goal is a Saturday night sprint across the checkered flag or a slow, easy cruise down main street, we have the suspension and driveline products you need for the experience you want.

No matter what you drive, we want you to #goDRIVEit!

Downloads:

Download Name File Size
9919-173_REV_Pro Coil.pdf567.96KB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years
Buick Regal 1973 - 1987
Buick Skylark 1968 - 1979
Chevrolet Camaro 1967 - 1969
Chevrolet Chevelle 1968 - 1973
Chevrolet Chevy II 1968
Chevrolet El Camino 1964 - 1987
Chevrolet Malibu 1973 - 1983
Chevrolet Monte Carlo 1970 - 1988
Chevrolet Nova 1969 - 1979
Chevrolet S10 1982 - 2004
GMC S15 1982 - 1990
GMC Sonoma 1991 - 2004
Oldsmobile 442 1968 - 1971
Oldsmobile Cutlass 1968 - 1987
Oldsmobile F85 1968 - 1972
Pontiac Firebird 1967 - 1969
Pontiac Grand Prix 1973 - 1987
Pontiac LeMans 1968 - 1972
Pontiac Tempest 1968 - 1970

Specifications:

Part Type Coilover Spring and Shock Assembly
Proposition 65 www.P65Warnings.ca.gov
Warranty Time 1 YR

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QA1 Shock GM C-O S-Adj 9 12.8 Stud/T-Bar GS401: