Control Arm Shim .185in Dual Mount

The Control Arm Shim .185in Dual Mount from ALLSTAR PERFORMANCE is a precision alignment component designed for suspension geometry correction on street and competition vehicles. As a mechanical technician knows, control arm shims are essential for dialing in proper camber, caster, and steering geometry—especially when building or modifying suspension systems. This aluminum shim sits between the control arm and frame mounting points to adjust suspension angles, making it indispensable for chassis builders, race shops, and serious enthusiasts who demand repeatable, accurate alignment specifications.

Manufactured from durable aluminum, the Control Arm Shim .185in Dual Mount features a natural finish and dual mounting configuration with 6-inch center spacing, allowing installation on both upper control arms or as part of a complete geometry package. The 0.185-inch thickness provides measured angular adjustment—thick enough to create meaningful camber change without requiring excessive stacking, yet precise enough for fine-tuning on vehicles running adjustable control arms. The dual-mount design ensures even load distribution across fastening points, preventing binding and maintaining alignment stability under cornering loads and track use. Compact at 4 x 0.35 x 12 inches and weighing just 0.16 pounds, this shim integrates seamlessly into most independent front-end designs.

This shim is ideal for vehicle owners performing suspension geometry work, whether correcting factory alignment issues, accommodating lowered setups, or optimizing handling for road course or autocross competition. Installation requires removing the control arm from its frame mounting point, inserting the shim between the arm and mounting surface, and reinstalling fasteners—a straightforward procedure for anyone with basic mechanical skill. The Control Arm Shim .185in Dual Mount works across most vehicles using conventional upper control arm mounting, making it a versatile choice for custom suspension builds and alignment corrections.