10pk Control Arm Shims .250in Dual Mount

The ALLSTAR PERFORMANCE 10pk Control Arm Shims .250in Dual Mount (SKU ALL60205-10) is a precision suspension component engineered for front-end geometry correction on performance and racing vehicles. These aluminum shims measure 1/4 inch thick with 6-inch center spacing and dual-mounting capability, making them essential for adjusting camber, caster, and kingpin inclination during suspension setup. Built for both street and track applications where proper control arm angle directly impacts tire wear rates, handling response, and overall stability.

Control arm shims work by inserting between the upper control arm mounting points and the chassis, effectively rotating the arm to modify suspension geometry. The .250-inch thickness provides a meaningful adjustment increment—precise enough for fine-tuning but substantial enough to deliver measurable changes without stacking excessive layers. Aluminum construction keeps overall vehicle weight minimal while maintaining rigidity under load. The dual-mount design accommodates both inner and outer pivot points, offering complete adjustability for diagonal geometry corrections that single-point shimming cannot achieve.

Ten shims per pack allow technicians to dial in suspension geometry progressively without purchasing multiple kits. This quantity suits single-vehicle comprehensive setup, fleet maintenance, or shop inventory for repeat customers. Proper control arm shimming is critical on circle-track cars, road-course racers, and street performance builds where cornering forces amplify geometry sensitivity. Buyers frequently combine these shims with alignment specs and tire pressure adjustments to optimize contact patch utilization and extend tire life while improving turn-in response and mid-corner grip.