Caster Slug .25 Offset

The U-B Machine Caster Slug .25 Offset is a precision aluminum control arm component engineered for vehicles requiring suspension geometry correction and alignment optimization. This offset caster slug is designed to work with slotted upper control arms, allowing installers to adjust caster angle during front-end suspension setup and alignment work.

The .25-inch offset specification is critical for fine-tuning caster angle on vehicles where OEM geometry has been modified or where aggressive suspension geometry is desired. The 1/2-inch ID hole accommodates standard upper control arm fasteners, while the aluminum construction keeps weight minimal—critical in performance and off-road applications where reducing unsprung mass improves handling response and ride quality. The natural finish resists corrosion while maintaining easy visibility during installation. Each slug is individually packaged, allowing technicians and builders to purchase exactly the quantity needed for their specific suspension configuration.

Professional automotive technicians, suspension builders, and restoration specialists rely on caster slugs to achieve precise alignment specifications on modified vehicles, race cars, and trucks undergoing frame-off restoration. Whether compensating for lowered suspensions, adjusting geometry on restomod builds, or dialing in handling characteristics on track vehicles, offset caster slugs are essential wear items that directly impact tire wear patterns, steering feel, and overall suspension performance.

U-B Machine caster slugs are sold individually, enabling builders and shops to source replacements or build custom suspension packages one component at a time. The compact 1.9 x 0.75 x 2.35-inch package makes these slugs easy to inventory and ship to job sites or service bays.