Our 1949-54 Chevy Car Front Power Disc Brake Conversion Kits are everything you need to convert your vehicle to power disc brakes. Uses Large D52 GM calipers for more friction surface area and improved stopping power. These kits mount to your original spindle making installation a snap. Works with aftermarket 14″ wheels. 15″ wheels recommended. For use with automatic transmission and original ‘K’ member. This kit will not work with convertibles or cars with original manual transmission.This kit moves your wheels out 3/8″ on each side.