Stocker Star Shock R-Series Adjustable

The QA1 Stocker Star Shock R-Series Adjustable (part number TN507) is a twin-tube shock absorber engineered for classic American muscle cars and performance vehicles. Built with aluminum construction in natural finish, this front shock is designed to fit GM A-Body, B-Body, F-Body platforms and Corvettes from 1963 through 1982. The R-Series adjustable design allows tuning of damping characteristics to match specific suspension geometry and driving conditions, making it a versatile choice for street driving, show preparation, and light performance use.

Twin-tube shock construction provides a sealed, compact design that resists contamination and extends service life compared to open designs. The adjustable damping feature enables fine-tuning of compression and rebound rates without requiring complete shock replacement—a practical advantage for builders iterating through suspension setups. The aluminum body helps reduce unsprung weight while maintaining structural rigidity, which translates to improved suspension responsiveness and reduced stress on mounting points during aggressive cornering or rough road surfaces.

This shock is purpose-built for owners of classic Chevrolet muscle cars—Camaros, Chevelles, Novas, Corvettes, and full-size models—who seek improved ride quality and handling over stock solutions. Whether restoring a driver-quality vehicle or building a weekend cruiser, the Stocker Star R-Series balances comfort with control. The adjustable feature also appeals to enthusiasts experimenting with different spring rates, bar stiffness, or track-focused geometry. At 3.05 lbs per unit, it's appropriately weighted for 1960s–1980s suspension systems designed around comparable shock masses.