The Wilwood Superlite 6R brake kit for 1955–1957 Chevrolet Bel Air fits 5 x 4.50in/4.75in hubs and includes 14.00in slotted rotors. The Superlite 6R designation and the 14-inch slotted rotor size are stated to help match this kit to Tri-Five Bel Air applications that require that hub pattern and rotor diameter. The overview concentrates on measurable fitment and rotor specification.
Wilwood 55-57 Chevy Bel Air Superlite 6R Kit, 5 x 4.50in/4.75in Hub - 14.00in Slotted