16mm Shock Shim U-Shaped 3/8in 25pk

The Allstar Performance 16mm Shock Shim U-Shaped 3/8in 25-Pack (ALL64454-25) is a precision suspension component engineered for vehicles requiring fine-tuned damper adjustment. These white plastic shims are designed to work with 16mm shock absorbers, providing critical spacing and load distribution that optimizes shock performance across varying suspension geometries and ride heights.

Each shim measures 3/8 inch thick and features a U-shaped profile that conforms to the shock body, ensuring stable positioning during installation and operation. The 25-pack quantity makes this ideal for shops, race teams, or enthusiasts who need multiple shims for setup trials, test-and-tune sessions, or maintaining a ready inventory. Plastic construction provides corrosion resistance and consistent performance across temperature cycling, critical for vehicles exposed to salt air or moisture-heavy environments.

Suspension technicians and performance builders rely on shock shims to correct ride geometry, control body roll, and dial in damper response without replacing expensive shock components. Whether adjusting preload, ride height, or shock angle in street rod builds, off-road platforms, or circle-track applications, these shims enable precise, incremental tuning. The 16mm specification matches a wide range of modern and classic shock platforms commonly found in custom suspension work.

Allstar Performance is an established supplier to the hot rod, street rod, and performance automotive market, with distribution through major speed shops and online retailers. This 25-pack removes the friction of ordering multiple smaller quantities and positions serious builders to handle real-world suspension development without repeated reordering delays.