16mm Shock Collar Shim Kit 1/2in 10pk

The ALLSTAR PERFORMANCE 16mm Shock Collar Shim Kit—1/2 inch thick, 10-pack—is a precision suspension component designed to manage shock absorber preload and ride height adjustment in high-performance and race applications. Built from durable plastic material with a collar-style design, these shims deliver repeatable, consistent geometry tuning for systems running 16mm shock absorbers.

Each shim measures 1/2 inch in thickness and features a two-piece construction that seats securely around the shock collar, allowing technicians to stack or combine them for fine-grained ride height and spring preload control. The plastic composite construction resists corrosion while maintaining dimensional stability across temperature and load cycles—critical for maintaining consistent suspension performance across multiple event days or seasonal use. The 10-pack quantity provides adequate shims for a complete vehicle setup with spares for tuning iterations or future adjustments.

This kit is purpose-built for racers, suspension fabricators, and motorsport enthusiasts who require modular suspension geometry tuning. Off-road, circle track, drag racing, and road course competitors rely on shim kits to dial in front-end geometry, eliminate ride height conflicts, and optimize weight transfer characteristics without requiring complete shock replacement. The collar-style design integrates seamlessly with standard 16mm shock tuning platforms, making these shims a standard maintenance and tuning item in professional shop environments.

ALLSTAR PERFORMANCE specializes in race-proven suspension and chassis components engineered to OEM specifications. These shims represent cost-effective, repeatable geometry control—the foundation of predictable suspension tuning for competitors who demand precision adjustability without downtime.