The Wilwood Superlite big brake kit for 1970–1981 F‑Body and 1975–1979 A & X‑Body applications includes a 14-inch rear brake upgrade with black calipers, specified for use with Pro Drop spindles. Presented as a rear big-brake option, the description lists rotor diameter and caliper finish along with spindle compatibility to aid in matching components to classic chassis conversions.
Wilwood 70-81 FBody/75-79 A&XBody FNSL6R Frt BBK 14in Rtr Blk Calipers Use w/ Pro Drop Spindle