The Wilwood Superlite 6R kit for 1955–1957 Chevrolet Bel Air fits 5 x 4.50in/4.75in hubs and is supplied with 12.88in D&S rotors. Labeled Superlite 6R, this kit pairs the specified hub pattern with drilled-and-slotted 12.88-inch rotors for Tri-Five Bel Air applications. The copy highlights measurable rotor size and the D&S rotor option to help confirm compatibility.
Wilwood 55-57 Chevy Bel Air Superlite 6R Kit, 5 x 4.50in/4.75in Hub - 12.88in D&S Rotor