Aluminum Bearing Spacer for Wide 5 Hub 4pk

The Allstar Performance Aluminum Bearing Spacer for Wide 5 Hub 4-pack (ALL72320-4) is a precision-engineered set of four spacers designed to maintain proper wheel bearing preload and axial clearance on wide-5 hub applications. These black anodized aluminum spacers are essential components for drag racing, circle track, and street rod builds where Wide-5 bolt patterns are used. Proper bearing spacing ensures consistent wheel geometry, reduces bearing wear, and maintains critical suspension alignment throughout acceleration and braking cycles.

The aluminum construction offers a significant weight advantage over steel alternatives while maintaining rigidity required for high-load applications. The black anodized finish provides corrosion resistance in both dry and salt-air environments, critical for vehicles stored outdoors or driven in harsh conditions. Each spacer is precisely machined to tight tolerances, ensuring uniform bearing preload across all four wheels. The 4-pack configuration covers a complete set of wheels, allowing builders to establish consistent bearing preload specifications from the ground up. This standardized approach eliminates guesswork during assembly and simplifies future maintenance when bearing service is required.

These spacers are purpose-built for builders who run Wide-5 hubs on performance vehicles, including drag cars, modified street rods, and circle track machines. Proper bearing preload is non-negotiable in these applications—too loose and bearings fail prematurely; too tight and friction and heat destroy them. The Allstar Performance spacers provide the precision hardware needed to dial in correct bearing clearance, ensuring wheel integrity under repeated hard launches, aggressive cornering, and extreme braking loads. For anyone assembling or rebuilding a Wide-5 hub application, these aluminum bearing spacers are a foundational specification item.