When Competition Engineering solid aluminum bushings are installed, control arm twist, wheel hop and suspension bind are virtually eliminated. Allows better weight transfer and harder launches. Fits Camaro/Firebird 1982-02, Chevelle/Malibu 1964-88, Skylark/Gran Sport 1964-77, LeMans/GTO 1964-77, Cutlass 442 1966-77, full-size Pontiac 1966-70, full-size Olds 1964-70.