The Calvert Racing CR Series 9-Way Adjustable Rear Shocks (Part #CR42133) are high-performance competition dampers engineered to deliver maximum consistency and control for drag racing and serious street/strip applications. These shocks are sold as a pair.
9-Way External Adjustability The key to the CR Series is the easy 9-way external dial adjustment. This system allows the user to precisely control rebound (extension) damping, which is vital for optimizing launch characteristics, preventing wheel hop, and maximizing rear-wheel traction during acceleration.
Monotube High-Performance Design These shocks feature a high-performance Monotube internal design, providing superior heat dissipation and more consistent damping action compared to twin-tube shocks.
Premium Racing Specifications:
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Internal Design: Monotube
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Valving: Single-Adjustable (9 settings)
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Mounts: Upper Stud, Lower Eyelet
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Bushings: High-durability Polyurethane (Black) for minimal deflection.
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Gas Charged: No
Muscle Car Fitment: The CR42133 is commonly used in rear solid-axle applications, including the popular 1967–2001 Chevrolet Camaro/Firebird (F-Body) and various classic Chevrolet muscle cars.
