ApplicationThis kit will fit 10 & 12 Bolt rear ends from: Compatible for Buick Skylark1964-77 compatible for Chevy Chevelle1964-73 compatible for Chevy Nova/Compatible for Chevy II 1964-79 compatible for Chevy El Camino1964-77 compatible for Camaro1967-69 compatible for Chevy Monte Carlo1970-77 compatible for Oldsmobile 4421964-71 compatible for Oldsmobile Cutlass 1964-77 compatible for Pontiac GTO1964-73 compatible for Pontiac LeMans1964-77 compatible for Pontiac Tempest1964-70OE/Part number91031919SpecificationIncludes rotors, calipers, pads, hardware, and caliper brackets. The housing flange must have: 3-1/8" center-to-center distance for the top two bolt holes 2-11/16" center-to-center distance for the bottom two bolt holes 2-7/16" distance from the center of the top bolt to the center of the bottom boltNoteNote: This disc brake kit does NOT fit all 10 & 12 bolt rear axles. It does NOT fit full size car (Biscayne, Bel Air, Impala) or pickup rear axles.