Shock Rear GM Monotube 12-2 valve w/Hyperscrew

The QA1 Shock Rear Monotube 12-2 Valve with Hyperscrew is a purpose-built performance shock absorber designed for vehicles requiring precision damping control and extended suspension travel. This single-unit rear shock combines monotube technology with a dual-rate 12-2 valve configuration to deliver consistent handling across varying load conditions and terrain demands. Built from steel with zinc plating for corrosion resistance, the shock measures 14.3 inches when fully compressed and extends to 22.63 inches, providing substantial suspension articulation for lifted or modified vehicles.

The 12-2 valving configuration allows pressurized gas to control damping rates independently during compression and rebound cycles, while the Hyperscrew adjustment mechanism enables fine-tuning of damping characteristics without dismounting the shock. Monotube design eliminates the need for a separate reservoir tube, reducing weight while improving heat dissipation during sustained use. The zinc-plated steel construction protects against salt spray, moisture, and oxidation common in harsh driving environments. At 4.85 pounds, this shock is engineered for vehicles ranging from street-driven trucks to off-road platforms where suspension compliance and controlled articulation are critical.

This rear shock is ideal for truck owners, off-road enthusiasts, and performance builders who require adjustable damping without sacrificing durability. The extended 22.63-inch maximum length supports lifted suspensions, while the compact 14.3-inch compressed dimension fits within typical vehicle undercarriage constraints. Users benefit from field-adjustable tuning, allowing suspension optimization for different payloads, cargo configurations, or terrain without shock replacement. Whether deployed in rock crawling, desert running, towing applications, or daily-driven modified vehicles, the monotube design and dual-rate valve deliver predictable, repeatable suspension control across demanding conditions.