Performance Online disc brake conversion kits are everything you need at the wheel to convert to disc brakes on your 1955-64 Chevy Belair and Impala. These kits mount to your original spindle making installation a snap. Works with 14" disc brake Rally wheels and aftermarket 14" wheels designed for disc brakes. 15" wheels recommended. Will also work on reverse offset 13" wheels. We recommend using one of our power brake boosters when using this disc brake conversion.