1965-1973 Mustang Power Brake Conversion Lines and Fittings Kit. This kit includes two straight lines (15 inch and 18 inch) with the correct double flare on one end and fittings for the master cylinder. We have included extra fittings to accommodate most cars. Although this kit is intended for the trained professional installing our conversion kits, customers with the correct flaring and bending tools will find this kit convenient to use and a time saver.