QA1 27954-3M 27 Series Monotube Shock Absorber Steel Body Stud/T-Bar 4-3M Valving

The QA1 27954-3M is part of the 27 Series — a stock mount monotube shock absorber built for performance racing applications. Featuring a zinc-plated steel body and a 46mm hard-anodized piston, the 27 Series delivers the same proven performance as QA1's well-established 26 Series while adding a stock mount configuration for broader compatibility. This shock ships with 4-3M linear Hyperscrew valving, a stud upper mount, and a T-bar lower mount, with a compressed length of 10.13 inches and an extended length of 15.67 inches.

Key Features:

• Stock mount monotube design — direct-fit replacement for classes requiring stock mount shocks
• 46mm hard-anodized piston for durability and consistent damping performance
• Zinc-plated body for corrosion resistance
• Linear Hyperscrew valving (4-3M) — provides controlled damping at low shaft speeds without extreme forces at high shaft velocities
• Stud upper mount / T-bar lower mount configuration
• Racer revalveable and rebuildable for long service life and tuning flexibility
• 100% dyno tested and serialized for verified, repeatable performance
• Made in the USA
• Popular choice for street stocks, hobby stocks, mini stocks, and other classes requiring stock mount shocks
• Available in 27 Series (Hyperscrew) configuration; 27A Series (Sealed Hyperscrew) also available separately (IMCA Southern Sport Mod legal)

The QA1 27 Series monotube shock is engineered for racers who demand consistent, tunable suspension performance within stock mount rules. Its linear valving characteristic promotes a stable, predictable feel, helping drivers better sense and respond to chassis behavior throughout a race.