Steel Shock Monotube GM Metric Rear 3C-5R Sealed

The Steel Shock Monotube GM Metric Rear 3C-5R Sealed by QA1 is a high-performance monotube shock absorber engineered for serious rear suspension tuning on General Motors vehicles. This sealed design eliminates external leakage and contamination, making it ideal for street cars, weekend warriors, and enthusiasts who demand reliable damping without frequent maintenance. Whether you're upgrading a performance build or restoring a classic GM platform, this shock delivers consistent control across varied driving conditions.

Built with QA1's proven monotube architecture, this rear shock uses a solid steel construction rated for the 3-click compression and 5-click rebound adjustability (3C-5R), allowing you to fine-tune dampening characteristics to match your suspension geometry, spring rates, and driving style. The sealed monotube design prevents nitrogen loss and fluid contamination that plague traditional twin-tube designs, ensuring predictable performance over thousands of miles. The compact 3.25-inch diameter and 25.5-inch length are optimized for metric GM rear suspension applications, providing drop-in compatibility without fabrication or clearance issues.

This shock is best suited for Chevrolet and GMC models with metric rear suspension geometry, particularly those running lowered springs, performance packages, or road-racing setups where dampening precision matters. Installation is straightforward on most GM platforms—verify mounting eyes and rod-end compatibility with your specific vehicle before ordering. The 4.9-pound weight and sealed construction make it a reliable choice for extended track days, autocross events, or aggressive street driving where consistent rear-axle control prevents instability and reduces tire wear.