Hub/Rotor M/C 1982-88 5 on 4.75in BC

The ALLSTAR PERFORMANCE Hub/Rotor M/C 1982–88 5 on 4.75in BC (SKU ALL 42087) is a cast-iron brake rotor engineered for General Motors metric-spindle vehicles from the 1982–1988 model years. This 10.500-inch outer diameter rotor delivers reliable thermal dissipation and consistent friction characteristics for street-duty and light performance applications. The 1.030-inch thickness provides adequate mass for heat absorption during sustained braking cycles, while the 5 x 4.75-inch bolt pattern ensures proper fitment to original GM brake hardware.

Specifications are critical when selecting replacement brake rotors for vintage GM platforms. The metric spindle design distinguishes these rotors from earlier and later GM generations, making proper identification essential for safe installation. Cast-iron construction offers cost-effectiveness and proven durability in standard-duty service, handling typical city and highway braking loads without complexity. The 19-pound weight reflects the rotor's solid material composition, which contributes to thermal capacity. Installation requires verification that the rotor matches your vehicle's original spindle type—metric vs. imperial—as they are not interchangeable.

This rotor is designed for 1982–1988 GM vehicles equipped with metric-spindle brake assemblies. Typical applications include front-wheel-drive models from that era that required the 5 x 4.75-inch pattern. Buyers restoring original brake systems or replacing worn OEM rotors will find this part maintains factory-specification fitment and performance. ALLSTAR PERFORMANCE has established credibility in the engine and chassis component market through consistent quality and technical accuracy in part identification and specifications.