This original 1965-1966 Chevrolet Impala frame is for any hardtop or sedan. We inspect key areas such as the body mount brackets, frame horns, and rear brace to ensure that they are still in good condition. The frame also fits the Bel Air and Biscayne Chevrolet models, but it does not fit a convertible. However, this frame can be modified to fit a convertible. The rear end and front a-arms with spindles can be purchased for an additional cost. The distinguishing difference with the 1965-1966 frame is that it has holes in the chassis on the backside of the engine cradle where the idler arm would typically mount.