Threaded Wheel Spacers 3/8in 5pk

The Threaded Wheel Spacers 3/8in 5pk from ALLSTAR PERFORMANCE are engineered precision components designed to increase wheel offset and track width on Wide 5 bolt-pattern vehicles. Whether you're running a classic muscle car, hot rod, or vintage race machine, these aluminum spacers bridge the gap between your hub and wheel, allowing you to dial in the exact stance and brake clearance your setup demands. As a mechanic who's handled countless suspension geometry refinements, I can confirm that proper wheel spacing is critical—it affects brake cooling, suspension travel, and overall handling balance.

Each spacer in this five-piece set features a 5/8-11 inch thread specification, machined to exacting tolerances for secure, vibration-free mounting. The 0.375-inch (3/8 inch) thickness provides a measured offset increase without requiring extended wheel studs in most applications—a practical advantage when you want to avoid additional hardware complexity. Clear anodized aluminum construction delivers corrosion resistance and a clean factory appearance while maintaining full structural integrity under high-load driving conditions. The uniform 0.23 lbs total weight across the pack ensures balanced hub loading, critical for maintaining tire balance and minimizing unsprung mass.

These spacers are ideal for restomod builders, drag racers, and street rod enthusiasts working with Wide 5 hubs—a bolt pattern common on vintage Chevrolet, Mopar, and Ford performance vehicles. Installation is straightforward: thread each spacer onto existing wheel studs, position your wheel, and torque to OEM specifications. Always verify brake rotor and caliper clearance before road use, and confirm that your wheel studs can safely accommodate the additional spacer length. This five-pack provides one set with a spare, perfect for test-fitting or upgrading multiple vehicles in your shop or fleet.