QA1 27686-2M 27 Series Monotube Stock Mount Shock Absorber Linear Hyperscrew

The QA1 27686-2M is a 27 Series stock mount monotube shock absorber designed for GM mid and full-size applications. Built on the legacy of QA1's proven 26 Series platform, the 27 Series delivers the same race-proven performance in a package engineered to fit stock shock mount locations — making it an ideal upgrade for street stocks, hobby stocks, mini stocks, and other classes requiring a stock mount shock.

Featuring a zinc-plated steel body for corrosion resistance and a 46mm hard-anodized piston, this shock is built to deliver rock-solid control and consistency. The linear valving design produces a damping curve that maintains complete suspension control at low shaft speeds without generating excessive forces at high shaft velocities, giving drivers better feel and a more stable, predictable handling balance.

Key Features:

• Stock mount monotube design — fits factory shock mount locations
• 46mm hard-anodized piston for superior control and durability
• Zinc-plated body for long-lasting corrosion resistance
• Linear valving (6C/2R) for smooth, consistent damping across shaft speeds
• Hyperscrew adjuster for on-car valving flexibility
• Racer revalveable and rebuildable — designed for unparalleled repeatability
• Multiple valving options available across the 27 Series lineup
• 100% dyno tested and serialized before leaving the factory
• Made in the USA

The QA1 27686-2M ships as a single shock absorber. Backed by QA1's limited warranty against defects in materials and workmanship, this shock is a trusted choice for racers and performance enthusiasts who demand precision, consistency, and the ability to fine-tune their suspension setup.