DISC BRAKE CONVERSION KIT 1964-1970 BUS, A perfect compliment for the stock enthusiast that wants the ultimate in stopping power while maintining a stock appearance. These kits will interchange with stock Bus wheels and alloy wheels. This kit features CNC machined cast alloy hubs and bolt-on style disc rotors, all of which is German made. The system includes all necessary parts (excluding master cylinder) and installation instructions. We highly recommend a dual circuit master cylinder be installed at the same time for 1966 and earlier vehicles. This kit kit fits 1964-1970 Bus Spindles( 28mm wheel bearing nuts. ). If using original road wheels with this kit, please order 10x part# N201121 lug nuts.