FITMENT:Fit for 1973-1974 for Buick Apollo,1965-1967 for Buick Gran Sport,1970-1971 for Buick GS,1968-1969 for Buick GS 350,1968-1969 for Buick GS 400,1970-1971 for Buick GS 455,1964-1971 for Buick Skylark PART NUMBER:PB8531
OEM STANDARD: O.E. quality seals, and check installed on every unit for like-new performance and reliability
PREVENT RUST:Exclusive rust-prohibitive finishing process extends unit life; All units are checked to ensure reliable performance
FUNCTION:Designed to considerably reduce brake pedal effort without losing control of the brake application
SPECIAL NOTES :Please be sure to compare carefully with photos and check part number before buying items